Illuminations (National Council of Teachers of Mathematics)
Illuminations is a project designed by the National Council of Teachers of Mathematics (NCTM).
Illuminations works to serve you by increasing access to quality standards-based resources for teaching and learning mathematics, including interactive tools for students and instructional support for teachers.
Our Resources
-
-
Lessons and interactives searchable by NCTM’s Principles and Standards and by the Common Core State Standards.
- Over 700 lesson plans
- Over 50 activities; these are virtual manipulatives, applets, and games
-
6 social media platforms
- And we’re always growing!
-
NCTM is committed to offering standards-based resources that improve the teaching and learning of mathematics for each and every student.
What is the maximum area achieved during this process?
What was his route?
Modify the position of three matches in order to obtain two equilateral triangles.
What is the largest possible three-digit result that can be obtained on the right side of the equation?
Write 2014 with the first four prime numbers, with the aid of the operations addition, multiplication and exponentiation.
Using the rule that defines the Fibonacci sequence, can you determine the value of the Golden Ratio?
Move 4 matches to form 3 squares.
Without looking, what is the least number of candies you must pick in order to be absolutely certain that three of them are brown?
What kind of Questions?
This problem can be found in eighth-century writings.
All three announce white at the same time. Why?
How much would it cost to buy the letters in your name?
Two of three arrays above can be filled with the integers 1-24 to form a magic rectangle. Which one can’t, and why not?
Solve these 2 equations in your head!
How many different hearts can you make?
How do I love thee? Let me plot the ways!
Can you come up with one or more equations to graph a heart on the coordinate plane?
What is the smallest integer that can be the hypotenuse of two different right triangles, each of which has legs whose lengths are also integers?
Every year, there are two months that do not begin on the same day of the week as any other month. What are those two months?
What are you looking for?
Organization
Website URL
Type of Resource
Resource Hub
Assigned Categories
Resource k12
Illuminations is a project designed by the National Council of Teachers of Mathematics (NCTM).
Illuminations works to serve you by increasing access to quality standards-based resources for teaching and learning mathematics, including interactive tools for students and instructional support for teachers.
Our Resources
-
-
Lessons and interactives searchable by NCTM’s Principles and Standards and by the Common Core State Standards.
- Over 700 lesson plans
- Over 50 activities; these are virtual manipulatives, applets, and games
-
6 social media platforms
- And we’re always growing!
-
NCTM is committed to offering standards-based resources that improve the teaching and learning of mathematics for each and every student.
What is the maximum area achieved during this process?
What was his route?
Modify the position of three matches in order to obtain two equilateral triangles.
What is the largest possible three-digit result that can be obtained on the right side of the equation?
Write 2014 with the first four prime numbers, with the aid of the operations addition, multiplication and exponentiation.
Using the rule that defines the Fibonacci sequence, can you determine the value of the Golden Ratio?
Move 4 matches to form 3 squares.
Without looking, what is the least number of candies you must pick in order to be absolutely certain that three of them are brown?
What kind of Questions?
This problem can be found in eighth-century writings.
All three announce white at the same time. Why?
How much would it cost to buy the letters in your name?
Two of three arrays above can be filled with the integers 1-24 to form a magic rectangle. Which one can’t, and why not?
Solve these 2 equations in your head!
How many different hearts can you make?
How do I love thee? Let me plot the ways!
Can you come up with one or more equations to graph a heart on the coordinate plane?
What is the smallest integer that can be the hypotenuse of two different right triangles, each of which has legs whose lengths are also integers?
Every year, there are two months that do not begin on the same day of the week as any other month. What are those two months?
What are you looking for?
Organization
Website URL
Type of Resource
Resource Hub
