a blog for Burnaby teachers
A certain milk crate can hold 36 bottles of milk. Can you arrange 14 bottles in the crate so that each row and column has an even number of bottles?
Extension:
What is the smallest array that can fit 14 bottles under this rule? What
about 15 bottles?
From Thinking Mathematically by John Mason
This is a great reasoning task for grades K-3.
From Alicia Burdess’s 2nd Grade Curriculum (starting on page 17)
Take the n
umber 25 and break it into as many pieces as you like! What is the biggest product you can make when combining the pieces? What is the smallest?
Extension: What if you could use decimals or fractions? Negative numbers?
*Grades 6-8