Mathalicious: Domino Effect
Mathalicious

In this lesson, students use slope, y-intercept, and linear equations to explore the costs of different-sized pizzas at Domino’s and debate whether the pizza chain should be more transparent in its pricing.

Mathalicious: Pizza Pi (HS)
Mathalicious

In this lesson, students use the formula for the area of a circle to calculate how much of a pizza is actually pizza, and how much is crust.

Mathalicious: Wiibates
Mathalicious

In this lesson, students use linear and quadratic models to analyze and discuss the relationship between the price of a Wii U console and profits for Nintendo.

Mathalicious: Datelines
Mathalicious

In this lesson, students use a system of linear inequalities to explore the popular dating rule-of-thumb, ‘half plus seven’, and debate how important age — and other factors — are in healthy relationships.

NRICH: Diamond Collector
NRICH (University of Cambridge)

Try to collect as many diamonds as you can!

NRICH: More Number Pyramids
NRICH (University of Cambridge)

In the number pyramid below, the number in the bottom left hand corner determines all the other numbers.

NRICH: Number Pyramids
NRICH (University of Cambridge)

In a number pyramid, the numbers on the lower layers determine the numbers above them.

NRICH: Special Numbers
NRICH (University of Cambridge)

One day our teacher asked us a puzzling question.

NRICH: Your Number Is...
NRICH (University of Cambridge)

Think of a number and follow the machine’s instructions… I know what your number is! Can you explain how I know?

NRICH: Reversals
NRICH (University of Cambridge)

Where should you start, if you want to finish back where you started?

NRICH: Perimeter Expressions
NRICH (University of Cambridge)

Create some shapes by combining two or more rectangles. What can you say about the areas and perimeters of the shapes you can make?

NRICH: Always a Multiple?
NRICH (University of Cambridge)

Think of a two digit number, reverse the digits, and add the numbers together. Something special happens…