6-8
Students use the Balance Pans Applet- Expressions Tool to explore algebraic expressions. They determine if algebraic expressions are equal. They balance pans to solve a system of equations and use graphing to find the solutions to a system of equations.
6-8
Students will balance shapes on the pan balance applet to study equality, essential to understanding algebra. Equivalent relationships will be recognized when the pans balance, demonstrating the properties of equality.
6-8
Using a balance in the classroom is a first step to algebraic understanding. Use this pan balance (numbers) applet to practice the order of operations in simplifying numerical expressions and to demonstrate the conventions of using algebraic logic in simplifying expressions.
6-8, 9-12
The consideration of cord length is very important in a bungee jump—too short, and the jumper doesn’t get much of a thrill; too long, and
ouch! In this lesson, students model a bungee jump using a Barbie
® doll and rubber bands. The distance to which the doll will fall is directly proportional to the number of rubber bands, so this context is used to examine linear functions.
6-8
Using a MIRA
TM geometry tool, students determine the relationships between radius, diameter, circumference and area of a circle.
6-8, 9-12
An Armstrong number is an
n-digit number that is equal to the sum of the
nth powers of its digits. In this lesson, students will explore Armstrong numbers, identify all Armstrong numbers less than 1000, and investigate a recursive sequence that uses a similar process. Throughout the lesson, students will use spreadsheets or other technology.
3-5
In this lesson, students discover the uses of geometry and measurement in the world of architecture as they are introduced to the clubhouse project.
3-5
In this lesson, students develop strategies for finding the perimeter and area for rectangles and triangles using geoboards and graph paper. Students learn to appreciate how measurement is a critical component to planning their clubhouse design.
3-5
In this lesson, students draw a two-dimensional blueprint of their clubhouse using graph paper.
3-5
In this lesson, students build a three‑dimensional model from their two‑dimensional blueprint. In addition, they solve problems related to constructing and decorating their clubhouse.
