#### • Algebra: Pattern

Number Boards come in different configurations:
• 1 – 100, 1 – 120, blank
• as charts
• as write-on wipe-off boards

### Videos

0:00 Intro
3:00 Number Clues
7:00 Patterns
15:10 Place Value Knowledge
19:00 A problem
24:30 Using the Blank Number Board

### Mathematical Language

Counting 1, 2, 3, etc. multiple, lowest common multiple, pattern, tables.

### Using Number Boards

The Hundreds Number Board may be used to help students:
• count
• count in multiples, eg 2, 4, 6, 8 … Start at any point on the board and count forward by threes,
fives, etc. Start at any point, eg 99 and count back by seven. Will you ever say fifty?
• notice place value relationships between numbers
• develop pattern recognition (multiples of 7, seven times table
• perform calculations
• develop mathematical language

#### Find My Number

The game Find my Number helps students gain familiarity with the Hundreds Number Board and builds a students’ mathematical vocabulary. The teacher provides clues to help students find a particular number on the board. Here is a sample set of clues.

• The number is even
• The number is less than fifty
• The number is a two-digit number
• The digits of the number add to make 10
• My tens digit is NOT 2
• What number am I? (46)

### Typical Classroom Requirements

#### A class set:

– 32 boards.
Ideally one board each or one board shared between two students.