Word doc: Quiz 3
Yay – we’re getting this! Multiplication plus subtraction with borrowing. Example 3 below is one of the few with a mistake, and its last step is correct, it’s the first step that’s not.
THIS problem, however, lead us into the pit of confusion. Only the last example below is correct, but the others came very close. It tells us what we still need to work on.
2. (Level 2) Multiplication and (Level 3) Different Bases
Multiplication is going well, too. Our students did a lot of area modeling in 4th grade. Exploding Dots helped many students visibly see what it means to borrow and carry within the place value chart.
About 40% of the students tried the Challenge Questions. These challenge questions were useful in clarifying place value relationships for our fastest students who otherwise would say, “just tell me the steps”!