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Adding It All Up
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"In this lesson, students draw various polygons and investigate their interior angles. ...

"In this lesson, students draw various polygons and investigate their interior angles. The investigation is done using both an applet and paper and pencil to foster an understanding of how different patterns can lead to the same solution. After comparing results with a partner, students develop a formula showing the relationship between the number of sides of a polygon and the sum of the interior angles." (from NCTM Illuminations)

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
National Council of Teacher's of Mathematics
Date created
7-محرم-1436
Adjacent Circles (number of possible combinations)
Rating

In this lesson, "students are encouraged to discover all of the combinations ...

In this lesson, "students are encouraged to discover all of the combinations for a given situation. They use problem-solving skills (including elimination and collection of organized data) to draw conclusions. The use of higher-level thinking skills (synthesis, analysis, and evaluations) is the overall goal." (from NCTM's Illuminations)

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Mathematics
Date created
7-محرم-1436
All About Multiplication
Conditions of Use:
Read the Fine Print
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This unit consists of four lessons in which students explore several meanings ...

This unit consists of four lessons in which students explore several meanings and representations of multiplication, including number lines, sets, arrays, and balance beams. They also learn about the commutative property of multiplication, the results of multiplying by 1 and by 0, and the inverse property of multiplication. Students write story problems and create pictographs. The unit includes activity sheets, assessment ideas, links to related applets, reflective questions for students and teachers, extensions and a bibliography of children's literature with a multiplication focus.

Subject:
Mathematics
Algebra
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Grace M. Burton
Date created
12-محرم-1436
All About Multiplication Exploring Equal Sets
Rating

Students explore the set model for multiplication. They find products using equal ...

Students explore the set model for multiplication. They find products using equal sets and present their results in a table. Next students apply their knowledge about multiplication in the creation of pictographs (from NCTM's Illuminations website).

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Math
Date created
7-محرم-1436
All About Multiplication: Hopping on the Number Line
Rating

"Students generate products using the number line model. This model highlights the ...

"Students generate products using the number line model. This model highlights the measurement aspect of multiplication and is a distinctly different representation of the operation. The order (commutative) property of multiplication is also introduced. Students are encouraged to predict products and to answer puzzles involving multiplication." from NCTM Illuminations.

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Math
Date created
7-محرم-1436
All About Multiplication: Modeling Multiplication with Rows and Columns
Rating

"This lesson encourages students to explore the array model of multiplication. The ...

"This lesson encourages students to explore the array model of multiplication. The lesson focuses on the factors 4 and 6. Students will also explore products with 0 or 1 as a factors. First students make arrays with counters, and then they create a second concrete example of the array model using toothpicks. They also write problems which involve multiplication." (from NCTM's Illuminations) This is lesson 3 in a 4-lesson unit.

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Math
Date created
7-محرم-1436
All in the Family
Rating

This lesson from Illuminations asks students to use a geometry applet to ...

This lesson from Illuminations asks students to use a geometry applet to analyze the characteristics of a square. Graphs are created to show relationships between characteristics (side length, diagonal length, perimeter, area). The lesson involves both algebra and geometry, is appropriate for grades 9-12 and should take one class period to complete.

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Date created
22-ذو الحجة-1435
Allow Me 2 Reiterate
Rating

This lesson from Illuminations teaches students to use a computer algebra system ...

This lesson from Illuminations teaches students to use a computer algebra system to determine the square root of 2 to a given number of decimal places. Students will learn how utilizing technology makes an algorithm easy to use, as well as using different modes with an iterative algorithm. The lesson is intended for grades 9-12 and should take one class period to complete.

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Date created
22-ذو الحجة-1435
Angle Sums
Rating

"Examine the angles in a triangle, quadrilateral, pentagon, hexagon, heptagon or octagon ...

"Examine the angles in a triangle, quadrilateral, pentagon, hexagon, heptagon or octagon and find a relationship between the number of sides and the sum of the interior angles." (Source: 2000-2012 National Council of Teachers of Mathematics)

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Mathematics
Date created
7-محرم-1436
Angle Sums
Conditions of Use:
Read the Fine Print
Rating

With this applet, students can examine the angles in a triangle, quadrilateral, ...

With this applet, students can examine the angles in a triangle, quadrilateral, pentagon, hexagon, heptagon or octagon. They can change the shape of the figure by dragging the vertices; the size of each angle is shown and the sum of the interior angles calculated. Students are challenged to find a relationship between the number of sides and the sum of the interior angles.

Subject:
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Date created
20-شوال-1433
Apple Pi
Rating

In this two-lesson unit, students will "use estimation and measurement skills to ...

In this two-lesson unit, students will "use estimation and measurement skills to determine the ratio of circumference to diameter and explore the meaning of pi. Students will discover the circumference and area formulas based on their investigations." (from NCTM's Illuminations)

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
NCTM/Illuminations
Date created
7-محرم-1436
Archimedes' Puzzle
Rating

In this math activity, learners explore the history of the Stomachion (an ...

In this math activity, learners explore the history of the Stomachion (an ancient tangram-type puzzle), use the pieces to create other figures, learn about symmetry and transformations, and investigate the areas of the pieces. The Stomachion, believed to have been created by Archimedes, consists of 14 pieces cut from a square, which can be rearranged to form other interesting shapes.

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
NCTM Illuminations
Samuel E. Zordak
Thinkfinity/Verizon Foundation
Date created
17-محرم-1436
Area Contractor
Rating

"This lesson gives students the opportunity to explore surface area in the ...

"This lesson gives students the opportunity to explore surface area in the same way that a contractor might when providing an estimate to a potential customer. Once the customer accepts the estimate, a more detailed measurement is taken and a quote prepared. In this lesson, students use estimation to determine the surface area of the walls and floor of their classroom. They check the reasonableness of their estimates, and then measure the classroom for accuracy." (from Illuminations, NCTM)

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Mathematics
Date created
7-محرم-1436
Arithme-Tic-Toc
Conditions of Use:
Read the Fine Print
Rating

These activities introduce modular arithmetic in real-world scenarios. Students begin by investigating ...

These activities introduce modular arithmetic in real-world scenarios. Students begin by investigating patterns and relationships that exist in 12-hour addition and multiplication clock tables. All student handouts are included, plus ideas for assessment and class discussion.

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Date created
20-شوال-1433
Averages and The Phantom Tollbooth Book
Rating

This worksheet uses The Phantom Tollbooth as a literature basis for problem-solving ...

This worksheet uses The Phantom Tollbooth as a literature basis for problem-solving tasks that challenge students to explore the concept of averages.

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Mathematics
Date created
7-محرم-1436
Baby Weight
Conditions of Use:
Read the Fine Print
Rating

In this lesson students use a rule of thumb about the weight ...

In this lesson students use a rule of thumb about the weight of babies to practice doubling and halving numbers. They complete an organized table and compare data using vertical and horizontal double bar graphs. The lesson includes a student activity sheet and extension ideas.

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Marcy Cook
Date created
12-جمادي الآخرة-1436
Balancing Act
Rating

"Problems such as those in this activity help develop what students already ...

"Problems such as those in this activity help develop what students already know in preparation for writing equations and learning ways to solve for variables. Students use mathematical models to explore quantitative relationships. When presented with pictures of pan balances with one or more objects in each pan, they communicate relationships between the weights of the objects by comparing the balanced and unbalanced pans." (from NCTM's Illuminations)

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Math
Date created
7-محرم-1436
Balancing Algebraic Understanding
Rating

"Using a balance in the classroom is a first step to algebraic ...

"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" (from NCTM's Illuminations). Lesson 2 of a three lesson unit.

Subject:
Mathematics
Algebra
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Mathematics
Date created
7-محرم-1436
Balancing Shapes
Rating

"Students will balance shapes on the pan balance applet to study equality, ...

"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." (from NCTM's Illuminations)

Subject:
Mathematics
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Illuminations National Council of Teachers of Mathematics
Date created
7-محرم-1436