Professional Doc
Texas Education Agency

Texas Gateway: Thinking Like an Expert: Teacher Modeling and Thinking Aloud

For Teachers 9th - 10th
This resource explores instructional practices for using think-aloud in English language arts, mathematics, science, and social studies classes. Think-Aloud examples are provided in both science and math. Download and print a resource...
Lesson Plan
Science Buddies

Science Buddies: Chain Reaction: Inversion and the Pappus Chain Theorem

For Teachers 9th - 10th
Here is a challenging problem for anyone with an interest in geometry. This project requires background research to solve it, but it is an excellent illustration of visual thinking in mathematics.
Activity
University of Cambridge

University of Cambridge: Maths and Sports: Olympic Logic

For Students 9th - 10th
Four sporty brainteasers in the context of fencing, hockey, football and international medal tables. This activity challenges students to be resourceful, to think logically and to work systematically, and is designed to be accessible to...
Activity
University of Cambridge

University of Cambridge: Maths and Sports: Olympic Triathlon

For Students 9th - 10th
Do you think the triathlon will be won by someone who is very strong in one event and average in the other two, or someone who is strong in all three disciplines? This activity challenges students to analyse real-life data and use their...
Website
Maths Challenge

Maths challenge.net: Problem Solving Database

For Teachers 9th - 10th Standards
Need some challenging problem-solving work for your students in the following areas: Discrete, Geometry, Numbers, and Code Breaking? This is the place for an enormous database of problems aimed at high school age students. They are...