January (Grades 3-5) — Looney Math

New Year’s

As a New Year’s resolution, Marco decided to exercise for 150 minutes each week. During the first week of January, Marco jumped rope for 10 minutes on Sunday, jogged for 20 minutes on Monday, rode his bike for 30 minutes on Tuesday, and went for a walk for 15 minutes on Wednesday.

If Marco did not exercise Thursday or Friday, how many minutes would he need to exercise on Saturday to meet his weekly goal?

Draw a math model to explain your thinking.

Dr. Martin Luther King, Jr.

Dr. Martin Luther King, Jr. (MLK) believed that all people were created equal and he helped to make sure that African Americans were treated the same as all other people in America. We celebrate his life on his birthday in January every year, as he is a person who changed the world.

Martin Luther King, Jr. gave his famous “I have a dream” speech in 1963. He was born in 1929.

How old was he when he gave his speech? How old would he be if he was alive today?

Show how you know.

SKATING AND TIME

Molly skated from 10:00 until 12:15. How long did she skate? Show how you know.

◇ ◇ ◇

Lucy wanted to skate for exactly 2 hours and 25 minutes. If she began skating at 11:15, at what time did she finish? Explain your solution.

◇ ◇ ◇

Joey skated for 90 minutes, and that was twice as long as Jessica. How long did Jessica skate? Explain your solution.