Lesson Plan
Khan Academy

Khan Academy: Lsn 13: Systems of Equations, Algebraic and Graphical Representations

For Teachers 9th - 10th Standards
Lesson 3 of 4 for Passport to Advanced Math. Students will solve systems of equations in two variables in which one equation is linear and the other equation is quadratic or another nonlinear equation; relate properties of the function f...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A ced.a.1: Sum of Angles in a Polygon

For Teachers 9th - 10th
This problem provides students with an opportunity to discover algebraic structure in a geometric context. They will divide up polygons into triangles. The will use the sum of the angles of 180 degrees for each triangle. Aligns with...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Sse Seeing Dots

For Teachers 9th - 10th Standards
The purpose of this task is to identify the structure in the two algebraic expressions by interpreting them in terms of a geometric context, a series of squares filled with dot arrangements. Students are asked to notice a pattern and...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Sse the Physics Professor

For Teachers 9th - 10th Standards
In this task, students are asked to study the structure of an algebraic expression, draw conclusions, and explain their thinking. Aligns with A-SSE.A.1 and A-SSE.A.1.b.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Toilet Roll

For Teachers 9th - 10th Standards
Picture a roll of toilet paper; assume that the paper in the roll is very tightly rolled. Assuming that the paper in the roll is very thin, find a relationship between the thickness of the paper, the inner and outer radii of the roll,...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Gpe a Midpoint Miracle

For Teachers 9th - 10th Standards
In this task, students are asked to draw a quadrilateral so that no two sides are congruent, no two angles are congruent, and no two sides are parallel. The task gives students the opportunity to prove that if we join the midpoints of a...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: N cn.a.2, N cn.b.5, and N cn.c.8 Complex Cube Roots

For Teachers 9th - 10th Standards
This task has students further their understanding of the algebra of the complex numbers. Aligns with N-CN.A.2, N-CN.B.5,a nd N-CN.C.8.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.ee Firefighter Allocation

For Teachers 5th - 8th
In this students are asked to write an equation to solve a real-world problem. There are two natural approaches to this task. In the first approach, students have to notice that even though there is one variable, namely the number of...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A rei.b.4.a: Visualizing Completion of the Square

For Teachers 9th - 10th
The purpose of this visualization task is to help provide geometric intuition for the algebraic process called ''completing the square.'' Aligns with HSA-REI.B.4.a.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Rei Pythagorean Triples

For Teachers 9th - 10th Standards
This task has two separate goals: the first is to solve a pair of equations, one quadratic and the other linear. The second goal is to observe that a point that lies on a circle gives rise to a Pythagorean triple. Aligns with A-REI.C.7.
Lesson Plan
Better Lesson

Better Lesson: Let's Review

For Teachers 2nd Standards
Revisit, Revisit, Revisit! Students need repeated exposure to math concepts to really understand how they work.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 7.ns, 7.ee Bookstore Account

For Teachers 7th
In this lesson, 7th graders add and subtract rational numbers to solve word problems.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 7.ns Rounding and Subtracting

For Teachers 7th Standards
This lesson plan has students subtract and round rational numbers.

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