3.1 Introducing Multiplication
- Students represent and solve multiplication problems through the context of picture and bar graphs that represent categorical data.
Section A Goals
- Interpret scaled picture and bar graphs.
- Represent data using scaled picture and bar graphs.
- Solve one- and two-step story problems using addition and subtraction.
Section B Goals
- Represent and solve multiplication problems involving equal groups.
- Understand multiplication in terms of equal groups.
Section C Goals
- Represent and solve multiplication problems involving arrays.
An arrangement of objects in rows and columns. Each column must contain the same number of objects as the other columns, and each row must have the same number of objects as the other rows.
- bar graphA way to show how many in each group or category using the length of rectangles.
A statement that includes an equal sign (=). It tells us that what is on one side of the sign is equal to what is on the other side.
An expression has at least 2 numbers and at least one math operation (such as addition, subtraction, multiplication and division).
- factorWhen we multiply two whole numbers to get a product, each of those numbers is a factor of the product.
- keyThe part of a picture graph that tells what each picture represents.
- multiplicationThe operation that tells you the total number of objects when you have a certain number of equal groups.
- picture graphA way to show how many in each group or category using pictures of the objects or symbols.
- productThe result of multiplying some numbers.
- scaled bar graphA bar graph marked in multiples of some number other than 1.
- scaled picture graphA picture graph where each picture represents an amount other than 1.