GED® Mathematical Reasoning - High Impact Indicators - Classroom Tools - Nets for Finding Surface Area

Sep 14, 2026

Webinar handout for adult educators focused on GED® Mathematical Reasoning High Impact Indicators, with a classroom lesson plan teaching learners to use nets to find surface area. The guide aligns instructional targets covering number sense, ratios, perimeter and area, and three-dimensional measurements, and connects them to mathematical practices. It provides objectives, materials for constructing nets (templates, tools, and box or roll models), and step-by-step process for representing 3-D figures as 2-D nets and calculating the required surface area.

LanguageEnglish

CategoryExam

FormatPDF

Pages28

Reading Time1 h 11 min

AccessFree to download

High Impact Indicators

Time to Explore and Reflect

Lesson Title: Using Nets for Finding Surface Area

Objectives and Standards

Materials

Instructional Plan

Process

# GED®Mathematical ReasoningHigh Impact Indicators ## Tools for the Classroom Bonnie Goonen-bv73008@aol.com Susan Pittman-skptvs@aol.com Webinar Guide November 18,2015Institute for the Professional Development of Adult Educators ## GED®Mathematical Reasoning HighImpact Indicators Rod Duckworth,ChancellorCareer and Adult Education,Department of Education Zelda Rogers,Senior Educational Program DirectorAdult Education,Career and Adult Education lla Waite-Burns,Program SpecialistAdult Education,Career and Adult Education June Rall,Director of IPDAETamara Serrano,Project Support Specialist for IPDAE Resources Developed and Designed By Bonnie Goonen Susan Pittman BY EDUCATORS FOR EDUCATORS The IPDAE project is supported withfunds provided through the FloridaDepartment of Education and Division ofCareer Adult Education. Institute for the Professional Development of Adult Educators3209 Virginia Avenue-Fort Pierce,FL 34981Phone 772-462-7409·E-mail info@floridaipdae.org Table of Contents High Impact Indicators…………………………………………………………………………………………………………………………………3 Time to Explore and Reflec………………………………………………………………………………………………………………4 Lesson Title: Using Nets for Finding Surface Area………………………………………………………5 GED Testing Service®Hll……………………………………………………………………………………………………25 High Impact Indicators Time to Explore and Reflect | Assessment Target
of HIl* | Covered Well | Gaps in Coverage | How to Strengthen
Coverage | | --- | --- | --- | --- | | Q.1 Apply number
sense concepts,
including ordering
rational numbers,
absolute value,
multiples,factors,
and exponents | | | | | Q.3 Calculate and
use ratios,
percents and scale
factors | | | | | Q.4 Calculate
dimensions,
perimeter,
circumference,
and area of two-
dimensional
figures | | | | | Q.5 Calculate
dimensions,
surface area,and
volume of three-
dimensional
figures | | | | | A.3 Write,
manipulate,solve,
and graph linear
inequalities | | | | | A.7 Compare,
represent,and
evaluate functions | | | | Module:Mathematical Reasoning Lesson Title:Using Nets for Finding Surface Area ### Objectives and Standards Students will: · Draw and construct nets for 3-D objects. · Determine the surface area of rectangular prisms,triangular prisms,and rightcylinders to solve problems | Prerequisite Skills
Common Core State Standards | Mathematical
Reasoning
2014 GED®
Assessment Targets | Mathematical Practices
Common Core State
Standards | | --- | --- | --- | | Classify two-dimensional
figures in a hierarchy based on
properties.
(CCSS.Math.Content.5.G.B.4)
Relate area to the operations
of multiplication and addition.
(CCSS.Math.Content.3.MD.7) | Compute the area and
perimeter of triangles
and rectangles.
Determine side lengths
of triangles and
rectangles(Q.4.a)
Compute the area and
circumference of
circles.Determine the
radius or diameter
when given area or
circumference.(Q.4.b)
Compute volume and
surface area of right
prisms and pyramids,
cylinders,spheres,
cones,and composite
figures.(Q.5.a,Q.5.b,
Q.5.c) | Make sense of problems and
persevere in solving them.
(CCSS.Math.Practice.MP1)
Model with mathematics.
(CCSS.Math.Practice.MP4)
Use appropriate tools
strategically.
(CCSS.Math.Practice.MP5)
Look for and make use of
structure.
(CCSS.Math.Practice.MP7) | Materials ● Cereal boxes · Measurement tools(rulers) ·Paper towel cardboard rolls ·Set of plastic nets or templates for various geometric nets · Scissors · Handout 1:Sample 3D Nets ·Handout 2:Creating a Net ·Handout 3:Using Nets to Find Surface Area-Step-by-Step ·Handout 4:Calculating Surface Area Using Nets ·Hand

FAQs

What is the main goal of the lesson on nets and surface area?

Students learn to recognize nets of 3-D figures and use nets to calculate surface area to solve problems.

What types of 3-D figures does the lesson focus on for surface area?

The lesson targets surface area for rectangular prisms, triangular prisms, and right cylinders.

What materials are used for constructing and working with nets?

Materials include cereal boxes, measurement tools, paper towel cardboard rolls, plastic nets/templates, scissors, multiple handouts, graph paper, and the GED® formula page.

Sep 14, 2026

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