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Worksheet Grade 3 Health & Consumer Science

Water Break Times at Cricket Hollow Day Camp

A grade 3 worksheet where students read a fictional day camp schedule and solve elapsed-time problems in minutes about the camp's three daily water breaks.

Objectives

  1. Students will read times to the nearest minute from a daily schedule.
  2. Students will solve word problems that add and subtract time intervals in minutes.

Vocabulary

Key words: schedule, elapsed time, interval, minute

Teacher overview

Camp counselors schedule water breaks on purpose, because campers who run and swim all day need water before they notice they are thirsty. This worksheet uses the posted schedule of the fictional Cricket Hollow Day Camp as its one data source. Students read times to the minute and find elapsed time between events, and every question keeps them inside the same camp day, from drop-off to pick-up.

Water Break Times at Cricket Hollow Day Camp — Grade 3 Health & Consumer Science
Name: ____________________________ Date: ______________

Student Worksheet

Imagine you are a camper at Cricket Hollow Day Camp. This schedule is taped to the cabin door. Use it for every question. The camp day runs from morning to afternoon, so the times after lunch are afternoon times. You may draw a number line to help.

Time What happens
8:30 Camp starts
9:15 First water break starts
9:20 First water break ends, games start
10:30 Games end, second water break starts
10:35 Second water break ends
10:45 Swim time starts
11:40 Swim time ends
12:00 Lunch starts
1:50 Third water break starts
2:00 Third water break ends
3:30 Camp ends
  1. At what time does the first water break start?
  2. Camp starts at 8:30. The first water break starts at 9:15. How many minutes pass between them?
  3. The first water break runs from 9:15 to 9:20. How many minutes long is it?
  4. Games run from 9:20 to 10:30. How many minutes of games is that?
  5. The second water break starts at 10:30 and lasts 5 minutes. At what time does it end?
  6. The second water break ends at 10:35. Swim time starts at 10:45. How many minutes are between them?
  7. Swim time ends at 11:40. Lunch starts at 12:00. How many minutes do campers wait for lunch?
  8. The third water break starts at 1:50 and lasts 10 minutes. At what time does it end?
  9. The three water breaks last 5 minutes, 5 minutes, and 10 minutes. How many minutes of water breaks is that in all?
  10. The third water break ends at 2:00. Camp ends at 3:30. How many minutes are left of camp?

From Water for Schools (waterforschools.org). This material is in the public domain (CC0) and may be copied, edited, and shared freely.

Answer Key
  1. Answer: 9:15. The schedule's second row shows the first water break starting at 9:15.
  2. Answer: 45 minutes. From 8:30 to 9:00 is 30 minutes, and from 9:00 to 9:15 is 15 more, so 30 + 15 = 45 minutes.
  3. Answer: 5 minutes. From 9:15 to 9:20 is 5 minutes.
  4. Answer: 70 minutes. From 9:20 to 10:20 is 60 minutes, and from 10:20 to 10:30 is 10 more, so 60 + 10 = 70 minutes.
  5. Answer: 10:35. Starting at 10:30 and adding 5 minutes reaches 10:35.
  6. Answer: 10 minutes. From 10:35 to 10:45 is 10 minutes.
  7. Answer: 20 minutes. From 11:40 to 12:00 is 20 minutes.
  8. Answer: 2:00. Starting at 1:50 and adding 10 minutes reaches 2:00.
  9. Answer: 20 minutes. 5 + 5 + 10 = 20 minutes of water breaks in the camp day.
  10. Answer: 90 minutes. From 2:00 to 3:30 is one hour and 30 minutes, which is 60 + 30 = 90 minutes.

Differentiation

Support

Give students a pre-drawn open number line marked at each schedule time, and have them hop between marks to count minutes. Assign items 1, 3, 5, and 6 first, since each involves reading one time or finding a single short interval.

Extension

Ask students to redesign the afternoon so campers get a fourth water break without changing when camp ends, then list the new schedule rows and prove with subtraction that every event still fits.

ELL supports

Pre-teach "schedule," "start," and "end" by acting out a tiny two-event schedule on the classroom clock. Provide the sentence frame "From ___ to ___ is ___ minutes," and let students read each schedule row aloud with a partner before solving.

Extensions

Have students write tomorrow's real class schedule in the same table shape, mark where their own water breaks happen, and find the longest stretch with no water break. Compare that stretch with the longest one at Cricket Hollow.