Students will learn ways to add using the associative property of addition. Students will view a PowerPoint presentation to introduce associative property of addition.

This hands-on, minds-on activity helps students use what they already know about customary measurement: Convert among different-sized standard measurement units within a given measurement system. to help them add and subtract fractions with like and unlike denominators.

In this lesson, one of a multi-part unit from Illuminations, students use an actual ruler to represent various fractions as lengths. This lesson builds on work done in a previous lesson with nonstandard measurement as students use a standard instrument to measure a variety of items. Several pieces of literature appropriate for use with this lesson are suggested.

Students will listen to the book Benny's Pennies and demonstrate their ability to count pennies, understand proper sequence and rewrite a story.