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8th Grade Math - Writing Equations and Inequalities
This post explains and gives practice opportunities related to TEKS 8.8A: write one-variable equations or inequalities with variables on both sides that represent problems using rational number coefficients and constants Instruction Students learn how to take real-world situations and turn them into algebraic expressions and equations. STAAR Practice Between 2016 and 2025, this supporting standard has been tested 8 times on the STAAR test. Videos explaining the problems can b
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Pythagorean Theorem on the Coordinate Plane
This post explains and gives practice opportunities related to TEKS 8.7D: determine the distance between two points on a coordinate plane using the Pythagorean Theorem Instruction Students apply their knowledge of the Pythagorean theorem to find distances on the coordinate plane. STAAR Practice Between 2016 and 2025, this supporting standard has been tested 7 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these que
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Using the Pythagorean Theorem
This post explains and gives practice opportunities related to TEKS 8.7C: use the Pythagorean Theorem and its converse to solve problems Instruction Students use the Pythagorean theorem to solve problems involving right triangles. STAAR Practice Between 2016 and 2025 (including redesign practice), this readiness standard has been tested 18 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, click here .
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Surface Area
This post explains and gives practice opportunities related to TEKS 8.7B: use previous knowledge of surface area to make connections to the formulas for lateral and total surface area and determine solutions for problems involving rectangular prisms, triangular prisms, and cylinders Instruction Students learn to differentiate between the lateral surface area (surface area without bases) and the total surface area of prisms and cylinders. STAAR Practice Between 2016 and 2025 (
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Volume
This post explains and gives practice opportunities related to TEKS 8.7A: solve problems involving the volume of cylinders, cones, and spheres Instruction Students extend their knowledge of volume to solve problems involving cones, cylinders, and spheres. STAAR Practice Between 2016 and 2025 (including redesign practice), this readiness standard has been tested 21 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over thes
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Modeling the Pythagorean Theorem
This post explains and gives practice opportunities related to TEKS 8.6C: use models and diagrams to explain the Pythagorean theorem Instruction Students use squares and representations to derive and explain the Pythagorean theorem. STAAR Practice Between 2016 and 2025 (including redesign practice), this supporting standard has been tested 6 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, click h er
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Describing the Volume of a Cylinder
This post explains and gives practice opportunities related to TEKS 8.6A: describe the volume formula V = Bh of a cylinder in terms of its base area and its height Instruction Students learn how to use the dimensions of a cylinder to describe the formula for its volume. STAAR Practice Between 2016 and 2025, this supporting standard has been tested 9 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, cl
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Modeling Slope-intercept Form
This post explains and gives practice opportunities related to TEKS 8.5I: write an equation in the form y = mx + b to model a linear relationship between two quantities using verbal, numerical, tabular, and graphical representations Instruction Students learn to model slope-intercept form in problems, tables, and graphs. Here are some activities you can use to teach this standard. STAAR Practice Between 2016 and 2025 (including redesign practice), this readiness standard has
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Identifying Proportional and Non-proportional Functions
This post explains and gives practice opportunities related to TEKS 8.5H: identify examples of proportional and non-proportional functions that arise from mathematical and real-world problems Instruction Students learn to identify real-world situations in which proportional and non-proportional functions exist. STAAR Practice Between 2016 and 2025 (including redesign practice), this supporting standard has been tested 7 times on the STAAR test. Videos explaining the problems
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Identifying Functions
This post explains and gives practice opportunities related to TEKS 8.5G: identify functions using sets of ordered pairs, tables, mappings, and graphs Instruction Students learn to identify functions, or coordinates in which each x-coordinate pairs with exactly one y-coordinate, in a variety of representations. STAAR Practice Between 2016 and 2025 (including redesign practice), this readiness standard has been tested 21 times on the STAAR test. Videos explaining the problems
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Proportional and Non-proportional Graphs
This post explains and gives practice opportunities related to TEKS 8.5F: distinguish between proportional and non-proportional situations using tables, graphs, and equations in the form y = kx or y = mx + b, where b ≠0 Instruction Students learn that proportional relationships always pass through the origin when graphed. STAAR Practice Between 2016 and 2025 (including redesign practice), this supporting standard has been tested 8 times on the STAAR test. Videos explaining t
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Direct Variation
This post explains and gives practice opportunities related to TEKS 8.5E: solve problems involving direct variation Instruction Students learn to use direct variation (y = kx) to solve problems. STAAR Practice Between 2016 and 2025, this supporting standard has been tested 6 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, click here . The videos below are linked to the questions in the quiz as answe
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Trend Lines
This post explains and gives practice opportunities related to TEKS 8.5D: use a trend line that approximates the linear relationship between bivariate sets of data to make predictions Instruction Students learn that trend lines can be used to approximate the linear or non-linear relationship of scatterplot data. STAAR Practice Between 2016 and 2025 (including redesign practice), this readiness standard has been tested 21 times on the STAAR test. Videos explaining the problems
Aaron Daffern
Aug 21, 20221 min read
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8th Grade Math - Linear Relationships
This post explains and gives practice opportunities related to TEKS 8.5C: contrast bivariate sets of data that suggest a linear relationship with bivariate sets of data that do not suggest a linear relationship from a graphical representation Instruction Students distinguish linear from not linear trends in scatterplots. STAAR Practice Between 2016 and 2025, this supporting standard has been tested 5 times on the STAAR test. Videos explaining the problems can be found below.
Aaron Daffern
Aug 20, 20221 min read
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8th Grade Math - Slope-intercept Form
This post explains and gives practice opportunities related to TEKS 8.5B: represent linear non-proportional situations with tables, graphs, and equations in the form of y = mx + b, where b ≠0 Instruction Students learn that linear non-proportional relationships do not pass through the origin and can be shown in a variety of situations. STAAR Practice Between 2016 and 2025 (including redesign practice), this supporting standard has been tested 6 times on the STAAR test. Video
Aaron Daffern
Aug 20, 20221 min read
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8th Grade Math - Representing Linear Proportional Relationships
This post explains and gives practice opportunities related to TEKS 8.5A: represent linear proportional situations with tables, graphs, and equations in the form of y = kx Instruction Students learn that linear relationships can be shown in a variety of situations. STAAR Practice Between 2016 and 2025 (including redesign practice), this supporting standard has been tested 8 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz
Aaron Daffern
Aug 20, 20221 min read
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8th Grade Math - Slope and Y-intercept
This post explains and gives practice opportunities related to TEKS 8.4C: use data from a table or graph to determine the rate of change or slope and y- intercept in mathematical and real-world problems Instruction Slope and y-intercept can be determined from graphs, tables, and real-world problems. Here are some activities you can use to teach this standard. STAAR Practice Between 2016 and 2025 (including redesign practice), this readiness standard has been tested 21 times
Aaron Daffern
Aug 20, 20221 min read
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8th Grade Math - Slope as Unit Rate
This post explains and gives practice opportunities related to TEKS 8.4B: graph proportional relationships, interpreting the unit rate as the slope of the line that models the relationship Instruction Students find the connection between unit rate and the slope of a line on a coordinate plane. STAAR Practice Between 2016 and 2025 (including redesign practice), this readiness standard has been tested 21 times on the STAAR test. Videos explaining the problems can be found below
Aaron Daffern
Aug 20, 20221 min read
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8th Grade Math - Slope in Similar Right Triangles
This post explains and gives practice opportunities related to TEKS 8.4A: use similar right triangles to develop an understanding that slope, m, given as the rate comparing the change in y- values to the change in x- values, (y2 - y1 ) / (x2 - x1 ), is the same for any two points (x1 , y1 ) and (x2 , y2 ) on the same line Instruction Students learn how slope remains the same for two similar right triangles that share a hypotenuse with a continuous line. STAAR Practice Between
Aaron Daffern
Aug 20, 20221 min read
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8th Grade Math - Dilation Representations
This post explains and gives practice opportunities related to TEKS 8.3C: use an algebraic representation to explain the effect of a given positive rational scale factor applied to two-dimensional figures on a coordinate plane with the origin as the center of dilation Instruction Students continue to apply their knowledge of dilations to create algebraic expressions. STAAR Practice Between 2016 and 2025 (including redesign practice), this readiness standard has been tested 20
Aaron Daffern
Aug 20, 20221 min read
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