3rd Grade. Hour and Half Hour. Slide 1 / 87 Slide 2 / 87. Slide 3 / 87. Slide 4 / 87. Slide 6 / 87. Slide 5 / 87. Time, Volume & Mass

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1 Slide 1 / 87 Slide 2 / 87 3rd Grade Time, Volume & Mass Slide 3 / 87 Table of Contents Hour and Half Hour Quarter Hour, 5 Minute and 1 Minute Elapsed Time AM & PM Measure and Estimate Liquid Volumes Volume Word Problems Measure and Estimate Mass Mass Word Problems click on the topic to go to that section Slide 4 / 87 Hour and Half Hour Return to Table of Contents Slide 5 / 87 Telling Time Slide 6 / 87 Telling Time What do you know about telling time? What does the hour hand (little) tell you? What do you know about telling time? What does the minute hand (big) tell you? How much time goes by each time you get to the next number?

2 Slide 7 / 87 Telling Time Put the numbers in the appropriate place Slide 8 / Telling Time What time is it? Write your answers in the box. Then pull down the shade to see if you are correct. : : : 00 7 : 30 Slide 9 / 87 Slide 10 / 87 Telling Time Telling Time raw the hour and minute hands on the clocks to match the time Pull down the shade to find a time. Move the hands on the clocks to the match the time in each box. 7:00 9: : : :00 8:30 Slide 11 / 87 Slide 11 () / 87 1 The clock shows 10:00. True False 1 The clock shows 10:00. True False False

3 Slide 12 / 87 2 Can the minute hand can go all the way up to 100? Slide 12 () / 87 2 Can the minute hand can go all the way up to 100? Slide 13 / 87 Slide 13 () / 87 Slide 14 / 87 4 How many minutes does the 6 represent on the clock? Slide 14 () / 87 4 How many minutes does the 6 represent on the clock? 30

4 Slide 15 / 87 5 Where should you put the hour hand when showing the time 7:30? A on the number 7 between the numbers 6 and 7 C on the number 6 between the numbers 7 and 8 Slide 15 () / 87 5 Where should you put the hour hand when showing the time 7:30? A on the number 7 between the numbers 6 and 7 C on the number 6 between the numbers 7 and 8 Slide 16 / 87 Slide 17 / 87 5 Minutes When the minute hand moves from one number to the next, 5 minutes pass. Quarter Hour, 5 Minutes and 1 Minute Return to Table of Contents Slide 18 / 87 Quarter Hour When the minute hand moves from across 3 numbers, 15 minutes pass. Slide 19 / 87 One Minute When the minute hand moves from one mark to the next, 1 minute passes.

5 Slide 20 / 87 Quarter Hour, 5 Minutes and One Minute Click on the button to play a telling time game. Slide 21 / 87 6 What time does this clock show? A 2:10 1:10 C 1:50 2:50 Slide 21 () / 87 6 What time does this clock show? A 2:10 1:10 C 1:50 2:50 Slide 22 / 87 7 What time is shown on the clock? A 6:57 11:06 C 6:00 11:30 Slide 22 () / 87 7 What time is shown on the clock? A 6:57 11:06 C 6:00 11:30 Slide 23 / 87 8 What time is shown on the clock? A 10:60 11:53 C 12:13 12:53

6 Slide 23 () / 87 8 What time is shown on the clock? A 10:60 11:53 C 12:13 12:53 9 oes the clock show 12:45? Slide 24 / 87 9 oes the clock show 12:45? Slide 24 () / 87 Slide 25 / oes this clock show 10:10? Slide 25 () / 87 Slide 26 / oes this clock show 10:10? NO Elapsed Time Return to Table of Contents

7 Slide 27 / 87 Elapsed Time Slide 28 / 87 Elapsed Time An example of elapsed time is given below. The time it takes for an activity to start to the time the activity ends is called elapsed time. Amy needs an hour and 15 minutes to drive from her house to her grandmother's house. If she leaves at 1:00, what time will she reach her grandmother's house? Read the next page for a suggestion on how to solve this problem. Use a clock Set the first clock for 1:00. Use it again to add an hour and 15 minutes. Slide 29 / 87 Elapsed Time Check yourself by using the digital clock. Set the second clock to 1:00 by using the arrows under the clock. Then see what time you have after adding an hour and 15 minutes. Slide 30 / 87 Elapsed Time t all elapsed time problems have you add time. Some might need you to subtract time. As in this example: The paper says your favorite movie ends at 4:45. You know that the movie is 2 hours and 15 minutes long. What time will the movie start? Read the next page for a suggestion on how to solve this problem. Slide 31 / 87 Slide 32 / 87 Elapsed Time Use a number line (or a ruler) Find 4:45 on the number line. 1 hour 1 hour 15 minutes 1. Tap this die to give you your starting time. Elapsed Time Hour ie? 4:45 2. Press the start and stop to flip the coin. Heads means to add the hour and minutes on the dice to the right. Tails means to subtract. Minute ie Use the ruler to subtract 2 hours and 15 minutes. What time is it?

8 Slide 33 / 87 Elapsed Time Click the clock to play an elapsed time game. Slide 34 / :00 is three hours later than noon. True False Slide 34 () / :00 is three hours later than noon. True False Slide 35 / JoAnn has to be home by 5:00. Her friend that lives next door wants her to watch a video that is 30 minutes long. If it is 4:15 now, does JoAnn have enough time? True Slide 35 () / JoAnn has to be home by 5:00. Her friend that lives next door wants her to watch a video that is 30 minutes long. If it is 4:15 now, does JoAnn have enough time? Slide 36 / Lynda read her book for 20 minutes. If she started reading at 4:52. What time did she finish reading? A 4:72 4:12 C 4:32 5:12

9 Slide 36 () / Lynda read her book for 20 minutes. If she started reading at 4:52. What time did she finish reading? Slide 37 / How many minutes pass from 1:10 to 2:00? A 4:72 4:12 C 4:32 5:12 Slide 37 () / How many minutes pass from 1:10 to 2:00? Slide 38 / If Nick needs 25 minutes to do his homework and his mom will check it at 6:00, what time should he start? 50 A 5:30 5:35 C 6:25 6:35 A 5:30 5:35 C 6:25 6:35 Slide 38 () / If Nick needs 25 minutes to do his homework and his mom will check it at 6:00, what time should he start? Slide 39 / Ana starts eating lunch at 12:15 p.m. She finishes eating lunch 40 minutes later. Which clock shows the time that Ana finishes eating lunch? Select the correct answer. A C From PARCC EOY sample test non-calculator #5

10 Slide 39 () / 87 Slide 40 / Ana starts eating lunch at 12:15 p.m. She finishes eating lunch 40 minutes later. Which clock shows the time that Ana finishes eating lunch? Select the correct answer. A C AM and PM From PARCC EOY sample test non-calculator #5 Return to Table of Contents Slide 41 / 87 AM and PM Slide 42 / 87 AM and PM There are 24 hours in a day. The 12 hours following midnight need an AM following the time and the other 12 hours that follow noon need a PM. What time is midnight?...noon? Here are some examples... Elizabeth is going for a hike in the morning at 7:00. How should she write the time? Sometimes an event starts in the AM and ends in the PM. As in this example... We leave for lunch at 11:22 and return to the classroom at 12:49. How would we write both of these times? Can you give an example of the opposite? Meaning an event that starts in the PM and ends in the AM. Keith's soccer game is after school at 3:00. How should he write the time? Slide 43 / 87 AM and PM Tap on the clock to play a AM/PM game. Slide 44 / Midnight and noon are the same thing. True False

11 Slide 44 () / Midnight and noon are the same thing. Slide 45 / What time is dance class after school? True A 11:00 AM False 1:00 PM False C 5:30 PM 10:15 PM Slide 45 () / What time is dance class after school? A 11:00 AM 1:00 PM C 5:30 PM 10:15 PM C Slide 46 / What time did the thunderstorm wake you up at in the middle of the night? A C 3:10 pm 7:25 pm 10:00 am 1:30 am Slide 46 () / What time did the thunderstorm wake you up at in the middle of the night? A C 3:10 pm 7:25 pm 10:00 am 1:30 am 20 Is midnight 12:00 pm? Slide 47 / 87

12 20 Is midnight 12:00 pm? Slide 47 () / 87 Slide 48 / oes school start at 8:00 AM or PM? Slide 48 () / 87 Slide 49 / oes school start at 8:00 AM or PM? AM Measure and Estimate Liquid Volume Return to Table of Contents Slide 50 / 87 Measure and Estimate Liquid Volume Liquid volume (or capacity) is the measure of how much liquid a container can hold. Slide 51 / 87 Measure and Estimate Liquid Volume The volume of this dropper is 1 milliliter (ml). Have you heard of this measurement? Please give an example.

13 Slide 51 () / 87 Measure and Estimate Liquid Volume The volume of this dropper is 1 milliliter (ml). Slide 52 / 87 Measure and Estimate Liquid Volume Teacher tes After the students give their examples press the split screen button and compare their examples with the ones on the next page. This test tube holds about 25 ml. Have you heard of this measurement? Please give an example. The cup and mug both hold about 250 ml. Slide 53 / 87 Measure and Estimate Liquid Volume How much liquid volume is in each measuring cup? Slide 54 / Would you use ml to measure the liquid volume of a bathtub? 100 ml 75 ml 50 ml 25 ml 90 ml 80 ml 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml Slide 54 () / Would you use ml to measure the liquid volume of a bathtub? Slide 55 / How many ml of liquid are in the beaker? 20 ml ml ml 5 ml

14 Slide 55 () / How many ml of liquid are in the beaker? Slide 56 / What is the volume of the liquid? 20 ml ml ml 5 ml ml 80 ml 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml Slide 56 () / 87 Slide 57 / What is the volume of the liquid? 90 ml 80 ml 70 ml 60 ml 50 ml 40 ml 30 ml 20 ml 10 ml About how many ml would a soup spoon hold? A 4 ml 40 ml C 400 ml Slide 57 () / About how many ml would a soup spoon hold? A 4 ml 40 ml C 400 ml Slide 58 / Would 500 ml be a good estimate for the liquid volume of this soup?

15 Slide 58 () / Would 500 ml be a good estimate for the liquid volume of this soup? Slide 59 / 87 Measure and Estimate Liquid Volume The volume of this measuring cup is 1 liter (L). 1,000 ml = 1 L Have you heard of this measurement? Please give an example. Slide 59 () / 87 Measure and Estimate Liquid Volume The volume of this measuring cup is 1 liter (L). Slide 60 / 87 Measure and Estimate Liquid Volume Teacher tes After the students give their examples 1,000 press ml = the 1 L split screen button and compare their examples with the ones on the next page. Have you heard of this measurement? Please give an example. All of these containers hold 1 L. This size bottle holds 2 L. Some fish tanks can hold 50 L. Slide 61 / Would 1 Liter be a good estimate for the liquid volume of this shampoo? Slide 61 () / Would 1 Liter be a good estimate for the liquid volume of this shampoo?

16 Slide 62 / 87 Slide 62 () / Which is the better estimate of the liquid volume of this pot? A 2 ml 2 L C 2 ll 28 Which is the better estimate of the liquid volume of this pot? A 2 ml 2 L C 2 ll Slide 63 / 87 Slide 63 () / Which TWO containers could hold more than 1 liter? A a baby's bottle a soda can C a bucket a drinking glass E a large mixing bowl 29 Which TWO containers could hold more than 1 liter? A a baby's bottle a soda can C a bucket a drinking glass E a large mixing bowl C & E Slide 64 / Could a bathroom sink hold 10 liters? Slide 64 () / Could a bathroom sink hold 10 liters?

17 Slide 65 / About how many liters can a pool hold? A 7 L 75 L C 750 L Slide 65 () / About how many liters can a pool hold? A 7 L 75 L C 750 L C Slide 66 / Gwen pours about 3 liters of water into a container. Select the letter that shows about how much water Gwen poured into the container. Slide 66 () / Gwen pours about 3 liters of water into a container. Select the letter that shows about how much water Gwen poured into the container. A C A C From PARCC PA sample test non-calculator #13 From PARCC PA sample test non-calculator #13 Slide 67 / 87 Slide 68 / 87 Volume Word Problems George's coffee cup holds 300 ml of coffee. If he took a 10 ml sip. How much coffee is left in George's cup? Volume Word Problems 300 ml - 10 ml = 290 ml Return to Table of Contents

18 Slide 69 / 87 Measure and Estimate Liquid Volume Florence bought 3 bottles of soda. If each bottle has a liquid volume of 2 L. How much soda does she have in all? Slide 70 / There are 7 jugs of juice on the store's shelf. Each jug holds 3 liters. How many liters of juice are on the shelf in all? 3 bottles x 2 liters each = 6 liters of soda Slide 70 () / There are 7 jugs of juice on the store's shelf. Each jug holds 3 liters. How many liters of juice are on the shelf in all? Slide 71 / The Smith family used 89 liters of water on Monday, 43 liters on Tuesday and 72 liters on Wednesday. How man liters of water did the Smith family use in those 3 days? 21 Slide 71 () / 87 Slide 72 / The Smith family used 89 liters of water on Monday, 43 liters on Tuesday and 72 liters on Wednesday. How man liters of water did the Smith family use in those 3 days? 204 Measure and Estimate Mass Return to Table of Contents

19 Slide 73 / 87 Slide 74 / 87 Measure and Estimate Math Mass is the measure of how much matter an object has. Slide 75 / 87 Measure and Estimate Liquid Volume Objects with more mass are measured with kilograms (kg). A grams kilograms Slide 76 / Which unit would be used to measure the mass of the umbrella? A grams kilograms Slide 76 () / Which unit would be used to measure the mass of the umbrella? Slide 77 / Which unit would be used to measure the mass of the hat? A grams kilograms

20 Slide 77 () / Which unit would be used to measure the mass of the hat? Slide 78 / How many grams do the rolls of coins have? A grams kilograms A Slide 78 () / How many grams do the rolls of coins have? Slide 79 / What is the mass of this duckling? 500 Slide 79 () / What is the mass of this duckling? Slide 80 / Which estimate is better for the mass of the cat? A 2 grams 2 kilograms C 20 kilograms 2

21 Slide 80 () / Which estimate is better for the mass of the cat? A 2 grams 2 kilograms C 20 kilograms Slide 81 / Which estimate is better for the mass of the dime? A 3 grams 30 kilograms Slide 81 () / 87 Slide 82 / Which estimate is better for the mass of the dime? A 3 grams 30 kilograms A Mass Word Problems Return to Table of Contents Slide 83 / 87 Mass Word Problems A pear has a mass of 203 grams. An apple has a mass of 157 grams. How many more grams is the pear than the apple? Slide 84 / 87 Mass Word Problems A rabbit has the mass of 2 kilograms. If there are 3 rabbits, what is the total mass? 203 grams grams = 46 grams 2 kg x 3 rabbits = 6 kg

22 Slide 85 / A snack bag has 48 grams of carrots and 23 grams of celery. How many grams of vegetables are in the bag? Slide 85 () / A snack bag has 48 grams of carrots and 23 grams of celery. How many grams of vegetables are in the bag? 71 Slide 86 / The total mass of 7 quarters is 42 grams. How many grams does each quarter have? Slide 86 () / The total mass of 7 quarters is 42 grams. How many grams does each quarter have? 6 Slide 87 / Mrs. Lyles' mass is 68 kg. If she picks up and holds her 13 kg son, what is their total mass? Slide 87 () / Mrs. Lyles' mass is 68 kg. If she picks up and holds her 13 kg son, what is their total mass? 81