# 2.1.1 Example 1

Identify the missing step used to solve the given equation.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

Identify the missing step used to solve the given equation.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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Solve the equation.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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Solve the literal equation for an identified variable.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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Solve the system of inequalities graphically.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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Use a graph to approximate the solutions for a system of equations.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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Three examples of cubic graphs to sketch. f(x) has 3 distinct roots ... (more)

Three examples of cubic graphs to sketch. f(x) has 3 distinct roots g(x) has 2 roots h(x) has 1 root (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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Write the slope-intercept form of an equation for the Lines that passes ... (more)

Write the slope-intercept form of an equation for the Lines that passes through the given Points and is parallel to the graph of the given Lines. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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This is an activity exploring Graphsing using y-intercepts, rise, run.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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A basic applet on intercepts and graphing.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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This is an activity on slope-intercept form.

- Subject:
- Mathematics and Statistics
- Material Type:
- Simulations
- Collection:
- GeoGebraTube
- Provider:
- GeoGebra

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The given solutions for this task involve the creation and solving of ... (more)

The given solutions for this task involve the creation and solving of a system of two equations and two unknowns, with the caveat that the context of the problem implies that we are interested only in non-negative integer solutions. Indeed, in the first solution, we must also restrict our attention to the case that one of the variables is further even. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Activities and Labs
- Collection:
- Illustrative Mathematics
- Provider:
- Institute for Mathematics and Education

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This task examines the ways in which the plane can be covered ... (more)

This task examines the ways in which the plane can be covered by regular polygons in a very strict arrangement called a regular tessellation. These tessellations are studied here using algebra, which enters the picture via the formula for the measure of the interior angles of a regular polygon (which should therefore be introduced or reviewed before beginning the task). The goal of the task is to use algebra in order to understand which tessellations of the plane with regular polygons are possible. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Activities and Labs
- Collection:
- Illustrative Mathematics
- Provider:
- Institute for Mathematics and Education

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This task provides a simple but interesting and realistic context in which ... (more)

This task provides a simple but interesting and realistic context in which students are led to set up a rational equation (and a rational inequality) in one variable, and then solve that equation/inequality for an unknown variable. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Activities and Labs
- Collection:
- Illustrative Mathematics
- Provider:
- Institute for Mathematics and Education

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This 3-minute video lesson introduces the concept of abolute value.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This 8-minute video lesson continues to look at absolute inequalities.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This 6-minute video lesson looks at absolute value and number lines.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This problem involves solving a system of algebraic equations from a context: ... (more)

This problem involves solving a system of algebraic equations from a context: depending how the problem is interpreted, there may be one equation or two. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Activities and Labs
- Collection:
- Illustrative Mathematics
- Provider:
- Institute for Mathematics and Education

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This task is a somewhat more complicated version of "Accurately weighing pennies ... (more)

This task is a somewhat more complicated version of "Accurately weighing pennies I'' as a third equation is needed in order to solve part (a) explicitly. Instead, students have to combine the algebraic techniques with some additional problem-solving (numerical reasoning, informed guess-and-check, etc.) (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Activities and Labs
- Collection:
- Illustrative Mathematics
- Provider:
- Institute for Mathematics and Education

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In this video segment, the ZOOM cast demonstrates how to use cabbage ... (more)

In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base. ***Access to Teacher's Domain content now requires free login to PBS Learning Media. (less)

- Subject:
- Science and Technology
- Material Type:
- Activities and Labs
- Collection:
- Teachers' Domain
- Provider:
- PBS Learning Media
- Author:
- WGBH Educational Foundation

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This activity introduces algebra unknowns and basic algebraic equations using tickets to ... (more)

This activity introduces algebra unknowns and basic algebraic equations using tickets to activities that may spark student interest. It comes from the Adult Basic Skills Professional Development Project at Appalachian State University. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Activities and Labs
- Provider:
- Appalachian State University and North Carolina Community College System
- Author:
- Cheryl S. Knight
- Edited by Dianne B. Barber
- Janice F. Voss

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.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni ... (more)

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni smelborp gnivlos rof seuqinhcet gnipoleved no si sisahpmE .scipot decnavda detceles dna scihparg retupmoc ,gnihcraes dna gnitros ,serutcurts atad ,sdohtem laciremun ,secafretni resu lacihparg ,stpecnoc gnimmargorp revoc smelborp gnimmargorp ylkeeW .esruoc eht fo sucof eht si tnempoleved dna ngised erawtfos detneiro-tcejbO .snoitacilppa cifitneics dna gnireenigne rof sdohtem lanoitatupmoc dna tnempoleved erawtfos latnemadnuf stneserp esruoc sihT (less)

- Subject:
- Science and Technology
- Material Type:
- Assessments
- Full Course
- Homework and Assignments
- Lecture Notes
- Syllabi
- Collection:
- MIT OpenCourseWare
- Provider:
- M.I.T.
- Author:
- George Kocur

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