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rdebro42

Rated 4.71 out of 5, based on 7 reviews
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Singapore
About the store
Teaching Mathematics Internationally since 2003.
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Preview of Wheel of Theodorus Solution Set

Wheel of Theodorus Solution Set

Created by
rdebro42
This is the solutions from a set of scaffolded tasks that enable students to investigate patterns in the Wheel of Theodorus. This provides purposeful practice of Pythagorean theorem. Buy these solutions or the whole set of tasks as a bundle.
Preview of Math Factor Quadratic Trinomials Area Model for a=1 and a not 1

Math Factor Quadratic Trinomials Area Model for a=1 and a not 1

Created by
rdebro42
A guided task to help students develop the concept of factoring. This task assumes/reviews prior knowledge of using distributive property (FOIL) to multiply a binomial by a binomial to make a trinomial. It helps students to see factoring as the reverse process of simplification using the area model of multiplication. This is a set of two tasks for trinomials where a=1 and for trinomials where a is not equal to 1. It is possible that you might do this in two separate lessons to help students dig
Preview of Math Decimals Addition and Subtraction Investigation

Math Decimals Addition and Subtraction Investigation

Created by
rdebro42
Decimals work for students ready for more advanced work. This provides purposeful practice while challenging students to use decimal and place value concepts to justify a maximum or minimum solution, or how many solutions are possible for a given calculation.
Preview of Investigation Maximum Area All 2D Shapes

Investigation Maximum Area All 2D Shapes

Created by
rdebro42
A Mathematics Investigation of maximum possible area of different 2D shapes with a given perimeter. Students can determine the area of each and make a conclusion about which of the shapes will have the highest possible area. Requires trigonometry for the pentagon/hexagon/octagon.
Preview of Math Fraction Digits Extension

Math Fraction Digits Extension

Created by
rdebro42
Fractions work for students ready for more advanced work. This provides purposeful practice while challenging students to use fractions concepts to justify a maximum or minimum solution, or how many solutions are possible for a given calculation.
Preview of Math Fractions Multiplication and Division Investigation

Math Fractions Multiplication and Division Investigation

Created by
rdebro42
Fractions work for students ready for more advanced work. This provides purposeful practice while challenging students to use fraction concepts to justify a maximum or minimum solution, or how many solutions are possible for a given calculation.
Preview of Math Decimals Multiplication and Division Investigation

Math Decimals Multiplication and Division Investigation

Created by
rdebro42
Decimals work for students ready for more advanced work. This provides purposeful practice while challenging students to use decimal and place value concepts to justify a maximum or minimum solution, or how many solutions are possible for a given calculation.
Preview of Math Fractions Addition and Subtraction Investigation

Math Fractions Addition and Subtraction Investigation

Created by
rdebro42
Fractions work for students ready for more advanced work. This provides purposeful practice while challenging students to use fraction concepts to justify a maximum or minimum solution, or how many solutions are possible for a given calculation.
Preview of Math Experimental Theoretical Probability Intro Game Data Collection

Math Experimental Theoretical Probability Intro Game Data Collection

Created by
rdebro42
An introduction to probability with two dice using a game called "Across the River". The game itself is free from the NZmaths website (https://nzmaths.co.nz/resource/across-river). This activity accompanies that game. This activity is to be done in groups so you can collect the number of students' dice rolls that totalled 2, 3, 4, etc. at each table. I also suggest making a simple google form to collect their data recordings. You will need two dice per pair of students who play the game. A free
Preview of Investigation Surface Area of Cone and Cylinder

Investigation Surface Area of Cone and Cylinder

Created by
rdebro42
A Mathematics Investigation for developing/finding the formula for the surface area of a cone and the surface area of a cylinder.
Preview of Math Compound Events Probability (Multiplication Rule) Investigation

Math Compound Events Probability (Multiplication Rule) Investigation

Created by
rdebro42
A mathematical investigation of the multiplication (compound events) rule in probability.
Preview of Math Probability Inclusion Addition Rule Investigation w Venn Diagrams

Math Probability Inclusion Addition Rule Investigation w Venn Diagrams

Created by
rdebro42
A Mathematics Invesigation of the addition rule (inclusion rule) for probability using lattice and venn diagrams.
Preview of Math: Patterns Handshakes Investigation Task

Math: Patterns Handshakes Investigation Task

Created by
rdebro42
A patterns investigation with scaffolding to help students investigate a pattern with number of handshakes based on number of people.
Preview of Booklet Template for BELLWORK (Openers)

Booklet Template for BELLWORK (Openers)

Created by
rdebro42
A blank printable booklet for students to record their working on any openers, "bellwork", problems of the day, etc.
Preview of Math Vectors Introduction with Maps

Math Vectors Introduction with Maps

Created by
rdebro42
A real-life application of vectors using a map of Salt Lake City, Utah, USA. Addresses concepts of magnitude and direction.
Preview of Math Problem Solving Truth Tiles

Math Problem Solving Truth Tiles

Created by
rdebro42
Problem Solving and Generalization with number operations
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About the store

Experience

Teaching Mathematics Internationally since 2003.

Teaching style

Concept-based, Inquiry-based

My own education history

M.Ed from University of British Columbia, Canada B.Ed from Queen's University, Canada B.AH from Queen's University, Canada

Additional biographical information

Living and Teaching in Singapore