Teaching the Common Core Math Standards With Hands-On Activities, Grades 3-5 Read Online Free PDF Page B

fives to find the time in 20 minutes—2:20, 2:25, 2:30, 2:35.
Activity 1: Time to Read
You will read Telling Time with Big Mama Cat by Dan Harper to your class. Students will determine what the time is as you read about the events in the story.
Materials
A copy of the book Telling Time with Big Mama Cat by Dan Harper (HMH Books, 1998) for the teacher.
Procedure
1. Explain that you will read a story about Big Mama Cat and time. Start by showing the fold-out clock at the front of the book. Adjust the hands so that they coincide with the start of the story.
2. Read aloud. Pause as you say a time and then show the time on the clock.
3. Ask your students questions at different points in the story. For example: What time is it now?
4. Continue this procedure until you are finished reading.
Closure
Note the actual time in class. Ask students: What time will it be in 10 minutes? 15 minutes? 20 minutes? 30 minutes? 45 minutes? 1 hour and a half? Include more examples if you feel it is necessary.
Activity 2: What Time Is It?
Working at a Web site, students will find the correct time on virtual clocks.
Materials
Computers with Internet access for students; computer and digital project for the teacher.
Procedure
1. Instruct your students to go to http://nlvm.usu.edu/en/ . They should click in the grades “3–5” column on the “Measurement” row and then scroll down and click on “Time—What Time Will It Be?” Explain that students will see two clocks and a question regarding time. The clocks have the same time. Students are to answer the question by changing the time on the second clock. ( Note: The clocks will be either analog or digital and will randomly change with new problems.)
2. Explain that they should show the new time on the round clock by moving the hands on the second clock, or on the digital clock by clicking on the arrows below the second clock. Demonstrate how to increase or decrease the time on the clocks.
3. Explain that after students have changed the time on the second clock, they should click on “Check Answer” to see if they are right. If they are, they should click on “New Problem.” If they are wrong, they should try again to find the correct time.
4. Instruct students to try several problems on their own.
Closure
Ask additional questions for which students must find the correct time. For example: If a movie starts at 7:15, and you are 10 minutes late, what time did you arrive at the theater? If it is 12:35, and you have a music lesson in 45 minutes, what time is your lesson?

Measurement and Data: 3.MD.2
    “Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects.”
2. “Measure and estimate liquid volumes and masses of objects, using standard units of grams (g), kilograms (kg), and liters (L). Add, subtract, multiply, or divide to solve one-step word problems involving masses or volumes that are given in the same units, e.g., by using drawings (such as a beaker with a measurement scale) to represent the problem.”
    Background
    Common units of the metric system are grams (g) and kilograms (kg) for measuring mass, which is the amount of matter in an object, and liters (L) for measuring capacity, which is the amount a container can hold. Following are some general descriptions:
     
A gram is a very small mass, about 0.035 ounce. Objects such as a paper clip or thumbtack weigh about 1 gram.
A kilogram is equal to 1,000 grams, about 2.2 pounds. A typical textbook or a pair of sneakers weighs about a kilogram.
A liter is equal to 1,000 milliliters, about 1.06 quarts. A glass of water is aboutof a liter. A common type of soda bottle contains 1 liter of soda.
Activity 1: Make a Metric Monster
This is likely to be a two- or three-day activity. Working in groups of three or four, students will create a metric monster (figure) from common items found in the classroom or at home.
Materials
A metric scale; glue sticks; scissors; construction paper;