Ch. 3 & 4 Review

You should be able to:

• Write word problems that use (a) comparison subtraction, (b) take-away model of subtraction, and (c) missing addend.
• Analyze students' methods for adding, subtracting, multiplying, or dividing. Analyze means be able to explain the child's procedure or solution method, whether their procedure is reasonable, and if they got the answer correct or not.
• Make a sketch that models the multiplication of two numbers (repeated addition, array, area, Fundimental Counting Principle), whether using whole numbers or fractions.
• Find many different ways to represent a number -- study problem 2 from the Ch. 1 & 2 test dealing with place value.
• Write division word problems that use equal share or repeated subtraction models.