Your students will become junior math detectives as they hunt down the missing side of a rectangle by applying the area formula for rectangles. The only clues they have are the rectangle's area and the measure of one side.

Help! The numbers in our equations have run away and left their answers alone! In this lesson, students will review their math facts and knowledge to solve Ken Ken like puzzles and bring the numbers back to their places.

Are these fractions really equal? Use this lesson to introduce the concept of equivalent fractions with your students. Teach this on its own or use it as support for the lesson Equivalent Fractions Using Area Models.