National Council of Teachers of Mathematics
The Math Forum: Teacher 2 Teacher: Use of Calculator Discussion Room
This site is a discussion room where teachers have commented on the use of calculators in the classroom. If you're a teacher feel free to join in on the discussion or ask your own question regarding calculators.
abcteach
Abcteach: Select a Math Problem Type
Generate worksheets for math problems ranging from simple addition problems to place value with expanded notation for free. Your choice of font, font size, color and landscape when printing.
Analyze Math
Analyze Math: Area of Triangles
The geometry resource explores the different formulas used to calculate the area of triangles. The applet investigates the angles and sides of a triangle.
Math Open Reference
Math Open Reference: Graphical Function Explorer (Gfe)
This resource provides a free function grapher. Enter up to 3 equations and plot them. Similar to a graphing calculator.
Free Math Help
Free Math Help: Batting Average
Here is an explanation about how to calculate a player's batting average.
Free Math Help
Free Math Help: Exterior Angle of a Triangle
This tutorial discusses exterior angles of a triangle. Example problems with explanations are included.
Free Math Help
Free Math Help: Future Value
The tutorial examines future value. The lesson consists of a compound interest formula, continuously compounded interest formula, and a future value calculator.
Free Math Help
Free Math Help: Earned Run Average
Use these examples and formula to find the earned run average of your favorite baseball pitcher.
GeoGebra
International Geo Gebra Institute: Geo Gebra
The free mathematics software creates interactive learning material that combines geometry, graphing, tables, algebra, statistics, and calculus. Teachers can download the free open source software to enhance their mathematics lessons. A...
CK-12 Foundation
Ck 12: Calculus: Volume by Cross Section
[Free Registration/Login may be required to access all resource tools.] This tutorial explains how to calculate the volume of various solids using the 'slicing' method and then deriving a formula for each solid. It goes on to discuss...
CPALMS
Cpalms: Exploring Cavalieri's Principle
[Free Registration/Login Required] In this lesson, students use the geometry program GeoGebra to explore Cavalieri's Principle, specifically to investigate whether it applies when calculating the volume of oblique solids. Lesson includes...
CPALMS
Cpalms: Building Graduation Caps
[Free Registration/Login Required] In this lesson, students build geometric models of graduation caps using stiff paper. The activity requires the application of skills in finding surface area, understanding similarity, knowing the...
Free Math Help
Free Math Help: Length of a Line Segment
The resource explains how to calculate the length of a line segment by working out an example.
CK-12 Foundation
Ck 12: Polar Form of a Complex Number
[Free Registration/Login may be required to access all resource tools.] Here you will learn how to convert complex numbers from rectangular form to polar form. You will also explore the graphs of complex numbers on a polar graph.
CK-12 Foundation
Ck 12: Algebra: Solving Linear Systems Using Matrices and Technology
[Free Registration/Login may be required to access all resource tools.] This lesson covers using a graphing calculator and matrices to solve a system of equations.
CK-12 Foundation
Ck 12: Analysis: Products and Quotients of Complex Numbers
[Free Registration/Login may be required to access all resource tools.] In this lesson, students calculate the products and quotients of complex numbers, identifying conjugates. Students examine guided notes, review guided practice,...
CK-12 Foundation
Ck 12: Trigonometry: Amplitude, Period, and Frequency
[Free Registration/Login may be required to access all resource tools.] Combine calculations for amplitude and period on a sine or cosine graph.
CPALMS
Cpalms: Mudslide
[Free Registration/Login Required] This is a formative assessment task where students are asked to first make a mathematical model of a mudslide given the dimensions of the area it covers. They then use an estimate of density to...
ClassFlow
Class Flow: Ocean Life
[Free Registration/Login Required] This flipchart is a multi-subject themed primary unit around the concept of oceans. Reading, Math, Science and Social Studies activities revolve around an ocean theme. In Part 3, students work on using...