Who doesn’t love a good riddle?! Using this lesson plan, your students will solve a puzzle while learning to read, write, and compare decimals to thousandths.

Which number doesn't belong? This lesson requires students to think critically as they determine which number is not a factor of a particular number. Teach it on its own or as support for the lesson Factors Over the Rainbow.

Students will explore how parentheses change the meaning of a number sentence. They will be challenged with a set of playing cards to make a certain number.

Students will practice mental math and harness their discussion skills through addition problems of like mixed numbers. This lesson may be used on its own or as support for the lesson Adding Mixed Numbers Using the Decomposition Strategy.

Children often wonder if algorithms are practical. Using this lesson plan, your students will see how the standard algorithm for adding mixed numbers brings life to real world real-world situations.