# Teaching Strategies for Number Systems & Sequences

Instructor: Cory Haley
In this lesson, you'll explore several different teaching strategies related to number sense and patterns within our number system to support the development of numeracy skills.

## What Is Numeracy?

Two, four six, eight who do we APPRECIATE! We all know this famous cheer, but did you know you were skip counting by 2s? Did you know a whole pizza could be divided into fractions, such as halves, thirds, fourths, fifths, sixths, and so on based on the number of people in your group? Also when you see a stop sign you are really looking at an octagon. Our real world experiences allow us to encounter math daily. We can only make sense of these experiences if we have great numeracy skills. Numeracy is the ability to reason and apply simple numerical concepts.

Within our math world, we are exposed to so many manipulatives and teaching strategies to make us all successful math students. In this lesson, we will explore the different math techniques, strategies, and manipulatives to learn about patterns and number sense.

## Hundred Chart

A hundred chart is a graphic organizer with numbers 1 to 100. The hundred chart contains to 10 rows and 10 columns.The hundred chart is an excellent manipulative to teach number patterns and number sense. Let's review the hundred chart below.

Let's say you were asking your students to skip count by 8s, starting with 8, 16, 24, 32, 40, and you want them to find the next number. You will have your students locate the number 8 on the hundred chart and teach them how to use the chart to count by 8s until they get to the next number, which would be 48. Here are a few more example problems that you could show starting with the number 78:

What is 10 less than 78? The answer is 68!

What is 10 more than 78? The answer is 88!

What is 1 less than 78? The answer is 77!

What is 1 more than 78? The answer is 79!

## Base-Ten Blocks

Base-ten blocks are cubes that can be used to teach place value concepts. Base-ten blocks include cubes representing 1,000, flats representing 100, rods representing 10, and a single cube representing one.

The base-ten blocks are great tools to add, subtract, multiply, and divide. Take a moment and look at this example.

Using this example, you could ask your students the following question:

Based off your knowledge of base-ten blocks, what is the solution to the problem?

You can model this for your students using actual blocks. You'd 5 rods which is equal to 50 and 17 cubes which is equal to 17. The correct answer students should come up with is 67.

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