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rdebro42

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Singapore

4.6

5 votes

Making mathematics more accessible and engaging, one task at a time.

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Trigonometry Investigation

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Grades

3^rd

4^th

5^th

6^th

7^th

8^th

9^th

10^th

11^th

12^th

Other

Not Grade Specific

Subject

Math

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$Build a Home Math Project - Area, Perimeter, Decimal Operations$

Build a Home Math Project - Area, Perimeter, Decimal Operations

By rdebro42

An integrated mathematics project for elementary or middle school students using skills with perimeter and area and decimal operations. Project is meant to be collaborative with one student as "Architect" and other student as "Accountant". Project

Subjects:

Math, Geometry, Decimals

Grades:

4^th, 5^th, 6^th, 7^th

Types:

Activities, Assessment, Homework

$20.00

Digital Download ZIP (1.10 MB)

ADD TO CART

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$Math G5-6 Quiz Bundle$

Math G5-6 Quiz Bundle

By rdebro42

Bundle of Math Quizzes for Grades 5 to 6(Extends Grade 4 students, Review basic skills for Grade 7 students)Including:- Integers- Fractions- Decimals- Number Properties- Ancient Number Systems- Statistics

Subjects:

Math, Fractions, Decimals

Grades:

4^th, 5^th, 6^th, 7^th

Types:

Activities, Handouts, Assessment

$24.00

$20.00

Bundle

ADD TO CART

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Algebra Equation Solving Concept Development Tasks

By rdebro42

Six (6) different types of tasks that require students to:- describe steps of worked solutions to equation solving- describe errors in worked solutions to equation solving- write expressions from a description of operations- write equations from a

Subjects:

Math, Algebra, Order of Operations

Grades:

6^th, 7^th, 8^th, 9^th

Types:

Activities, Handouts, Task Cards

$10.00

Digital Download ZIP (0.70 MB)

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$Math Surface Area and Volume Justify Accuracy Tasks$

Math Surface Area and Volume Justify Accuracy Tasks

By rdebro42

A deep application task requiring students to justify the degree of accuracy of their results from surface area and volume calculations using error bounds of measurement.4 different tasks practicing the same skill.Could be used as low as 4th or 5th

Subjects:

Math, Geometry, Measurement

Grades:

6^th, 7^th, 8^th, 9^th

Types:

Projects, Activities, Assessment

$8.00

Digital Download ZIP (0.40 MB)

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Six Problem Solving Tasks for Number Operation Generalization

By rdebro42

Mathematical problem-solving tasks Low-Floor High CeilingTasks have multiple solutions. These problems can then be extended for students to generalize their solutions. Excellent places to develop logical thinking and mathematical proof in upper

Subjects:

Math, Applied Math, Mental Math

Grades:

4^th, 5^th, 6^th, 7^th

Types:

Activities, Handouts, Task Cards

$10.00

Digital Download ZIP (0.28 MB)

ADD TO CART

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Math: Set of Investigations (9) with Linear Patterns Verifying Justifying

By rdebro42

A set of 9 tasks getting students to investigate linear patterns and to verify and justify their generalization.

Subjects:

Math, Algebra, Numbers

Grades:

5^th, 6^th, 7^th, 8^th

Types:

Activities, Handouts, Assessment

$10.00

Digital Download ZIP (0.57 MB)

ADD TO CART

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$Math: G7 Algebra and Linear Patterns Bundle of Quizzes (14)$

Math: G7 Algebra and Linear Patterns Bundle of Quizzes (14)

By rdebro42

A set of 14 quizzes to support a unit on grade 6-7 Algebra and linear patterns.

Subjects:

Math, Algebra, Word Problems

Grades:

6^th, 7^th, 8^th, 9^th

Types:

Activities, Handouts, Assessment

$8.00

Digital Download ZIP (0.35 MB)

ADD TO CART

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$Math Set of Quizzes Fractions Decimals Percentages$

Math Set of Quizzes Fractions Decimals Percentages

By rdebro42

A set of 27 quizzes to use for diagnostic and formative assessment in middle school classes for fractions, decimals and percentages

Subjects:

Math, Fractions, Decimals

Grades:

5^th, 6^th, 7^th, 8^th

Types:

Handouts, Assessment, Printables

$6.00

Digital Download ZIP (0.46 MB)

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$Math: Logarithm Laws Investigation$

Math: Logarithm Laws Investigation

By rdebro42

Inquiry lesson for students to discover logarithm laws.Extension to the proof of the log laws

Subjects:

Math, PreCalculus, Algebra 2

Grades:

9^th, 10^th, 11^th

Types:

Activities, Handouts, Assessment

CCSS:

HSF-LE.A.4

$5.00

Digital Download DOCX (0.06 MB)

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Algebra Linear Patterns Practice Tasks (Set of 4)

By rdebro42

Four Tasks for introducing and practicing finding equations for linear patterns. These tasks prompt students to begin asking the question "how do I know this is true?"

Subjects:

Math, Algebra, Order of Operations

Grades:

5^th, 6^th, 7^th, 8^th

Types:

Activities, Handouts, Lesson

$4.00

Digital Download ZIP (0.22 MB)

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$Math G6-7 Fraction & Decimal Investigation: Nines in the D$

Math G6-7 Fraction & Decimal Investigation: Nines in the Denominator

By rdebro42

An investigation of conversions between fractions and decimals that adds complexity to an upper year review of decimals and fractions

Subjects:

Math, Fractions, Decimals

Grades:

4^th, 5^th, 6^th, 7^th

Types:

Activities, Handouts, Assessment

$3.00

Digital Download DOCX (0.09 MB)

ADD TO CART

WISH LIST

Quadratic Functions Notice and Wonder Graph Matching Function Forms

By rdebro42

An inquiry task where students match equations on cards to graphs of quadratic functions. This forces students to attend to function forms and how their parameters impact the features of the graph.This task assumes prior knowledge of algebraic

Subjects:

Math, Algebra, Algebra 2

Grades:

9^th, 10^th, 11^th, 12^th

Types:

Activities, Assessment, Lesson

$7.00

Digital Download ZIP (1.55 MB)

ADD TO CART

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

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

Subjects:

Math, Algebra, Algebra 2

Grades:

8^th, 9^th, 10^th, 11^th

Types:

Activities, Handouts, Assessment

$3.00

Digital Download PDF (0.07 MB)

ADD TO CART

WISH LIST

$Math Bundle: Ancient Number Systems Quizzes$

Math Bundle: Ancient Number Systems Quizzes

By rdebro42

High Frequency Low Stakes quizzes for Ancient Number systems in one bundle. 8 quizzes in total:2 Quizzes: Sumerian Babylonian Numbers1 Quiz: Egyptian Numbers1 Quiz: Greek Numbers1 Quiz: Four systems1 Quiz: Multiple systems including Roman Numerals2

Subjects:

Math, Arithmetic, Numbers

Grades:

5^th, 6^th, 7^th

Types:

Handouts, Assessment, Homework

$4.00

Digital Download ZIP (4.27 MB)

ADD TO CART

WISH LIST

Quadratic Function Modeling Guided Task and Practice

By rdebro42

A guided inquiry task to help students understand the significance of each stage of the function modeling process.One question with structured prompts for the types of things to write about is provided, followed by three practice questions each with

Subjects:

Math, Algebra, Algebra 2

Grades:

9^th, 10^th, 11^th, 12^th

Types:

Activities, Handouts, Assessment

$4.00

Digital Download DOCX (0.03 MB)

ADD TO CART

WISH LIST

Investigation Inverse Function Graphs

By rdebro42

A mathematics investigation of the graphical properties of functions and their inverses. This helps students to discover the reflective property of graphs of inverses and can start students on the process of noticing the relationships between

Subjects:

Math, Graphing, Algebra 2

Grades:

9^th, 10^th, 11^th, 12^th

Types:

Activities, Handouts, Assessment

$3.00

Digital Download DOCX (0.19 MB)

ADD TO CART

WISH LIST

Experimental Theoretical Probability Intro Game Data Collection

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

Subjects:

Math, Statistics

Grades:

9^th, 10^th, 11^th, 12^th

Types:

Activities, Handouts, Assessment

$2.00

Digital Download PDF (0.09 MB)

ADD TO CART

WISH LIST

$Math Wheel of Theodorus Pythagoras Investigation Set of Sc$

Math Wheel of Theodorus Pythagoras Investigation Set of Scaffolded Tasks

By rdebro42

This is a set of scaffolded tasks that enable students to investigate patterns in the Wheel of Theodorus. This provides purposeful practice of Pythagorean theorem.Task 1 - students have no tables and must organize their work themselves. The task

Subjects:

Math, Geometry, Measurement

Grades:

9^th, 10^th, 11^th, 12^th

Types:

Worksheets, Activities, Assessment

$21.00

$15.00

Bundle

ADD TO CART

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Wheel of Theodorus Solution Set

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.

Subjects:

Math, Geometry, Measurement

Grades:

9^th, 10^th, 11^th, 12^th

Types:

Worksheets, Activities, Assessment

$6.00

Digital Download PDF (0.16 MB)

ADD TO CART

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Perimeter Area Optimization Investigation

By rdebro42

Mathematics Investigation to help students determine the method for finding the result of two optimization problems:1) the maximum area of a rectangle, given a perimeter2) the minimum perimeter of a rectangle, given an area

Subjects:

Math, Geometry, Measurement

Grades:

7^th, 8^th, 9^th, 10^th

Types:

Activities, Handouts, Assessment

$4.00

Digital Download DOCX (0.20 MB)

ADD TO CART

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TEACHING EXPERIENCE

Teaching Mathematics Internationally since 2003.

MY TEACHING STYLE

Concept-based, Inquiry-based

HONORS/AWARDS/SHINING TEACHER MOMENT

Yet to be added

MY OWN EDUCATIONAL 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

GRADES

3^rd, 4^th, 5^th, 6^th, 7^th, 8^th, 9^th, 10^th, 11^th, 12^th, Not Grade Specific

SUBJECTS

Math, Algebra, Applied Math, Arithmetic, Basic Operations, Fractions, Geometry, Graphing, Measurement, Numbers, Order of Operations, PreCalculus, Trigonometry, Statistics, Word Problems, Algebra 2, Mental Math, Decimals