I created this lesson using the place value cards found on Helping With Math, https://www.helpingwithmath.com/printables/flashcards/2nbt3-number-cards01.htm and was used with a tier 3 fourth grade intervention math group to help students understand place value in expanded algorithms for addition. First I asked students to mentally add two three digit numbers that did not include zeros. When students added them by place value I notated it on a white board using expanded form and pointed out how it matched the student's mental strategy. I then gave students additional problems and students used the place value cards to expand the numbers and then wrote the corresponding expanded notation algorithm on whiteboards. Students had a little difficulty using the cards when zeros were in the tens and ones place. We addressed misconceptions with zeros in place values.
- Subject:
- Mathematics
- Material Type:
- Learning Task
- Date Added:
- 05/13/2018