Lesson++1

Lesson #1 Investigations Grade 1 In unit 3 the students are introduced to subtraction. They are using whole numbers to develop an understanding of this operation. The activities and games involve students removing one amount from the other. The goal is to have students visualize the action and to solve the problem in a way that it will make sense to them. One way we practice and develop strategies is to solve subtraction problems with whole numbers on a pair of die. The students play a game called five -in - a - row subtraction. They roll the die and determine which number is larger. Students use a strategy that best helps them come up with the end results. With the pencil tool of their choice they mark their answer. The game is over when one of them has five - in - a - row or the board is covered.

This activity was a lesson my students had done in the past at their desks with a partner. When they had a chance to play it on the Smartboard they could not wait until it was their turn. They really enjoyed watching the die roll. Below is a lesson I created on Smartboard. I pulled an interactive picture from the gallery and created a chart.