Lesson Plan
Curated OER

#### Investigating Square and Triangle Numbers

For Teachers 5th
Fifth graders build increasingly larger squares and triangles using pattern blocks. They record the growth patterns on a chart and look for corresponding numerical patterns. Students describe the patterns they find and use them to...
Lesson Plan
Curated OER

#### Number Patterns: Triangular Numbers

For Teachers 5th - 8th
Students explore number patterns. In this number pattern lesson, students discover the attributes of triangular numbers as well as the number patterns associated with them as they practice sequencing 10 triangular numbers.
Worksheet
Curated OER

#### Triangular Numbers

For Students Higher Ed
In this triangular numbers learning exercise, students create a table of triangular numbers, write a formula for the nth number, and determine the sum of any two consecutive triangular numbers. This two-page learning exercise contains...
Lesson Plan
Curated OER

#### Triangular Numbers Are Everywhere !

For Teachers 4th - 5th
In this math worksheet, students observe that the triangular numbers are associated with the sums of consecutive natural numbers beginning with 1.
Worksheet
Curated OER

#### Easy Worksheet: Special Numbers

For Students 9th - 12th
In this special numbers worksheet, students solve 4 short answer problems. Students find various terms in the Fibonacci sequence, triangular number sequence, and the natural numbers in Pascal's Triangle.
Lesson Plan
Curated OER

#### Number Patterns: Triangular & Square Numbers

For Teachers 5th - 8th
Students explore the patterns found in triangular and square numbers. In this number pattern lesson, students complete a worksheet exploring the relationship between triangular numbers and square numbers.
Lesson Plan
Curated OER

#### The Truth About Triangles and Squares

For Teachers 4th
Fourth graders investigate the patterns associated with both triangular and square numbers. They use counters as manipulatives to depict the numbers as needed but focus on problem solving using mental math techniques.