Students will be able to add two-digit numbers with and without regrouping using a model.
Stimulate classroom engagement by asking your students if any of them like M&Ms. Let them know that this lesson involves adding numbers using M&Ms.
Direct students' attention to the key at the bottom of the M&M place value mat, which states that 10 blue M&Ms are equivalent to one red M&M.
Show them the rest of the place value mat. Explain that each blue M&M equals one and belongs in the ones place, or the number position one space left of a decimal point. Each red M&M equals ten and belongs in the tens place, or number position two spaces to the left of a decimal point.
Inform the class of this important rule: There cannot be more than nine M&Ms in any column.