ISKME's OER Fellowship, SEC STEM Educators 2013-2014

This group is for ISKME's SEC OER Fellows to share, organize, and collaborate with resources for their projects.
32 members | 159 affiliated resources

All resources in ISKME's OER Fellowship, SEC STEM Educators 2013-2014

Identifying Similar Triangles

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This lesson unit is intended to help you assess how students reason about geometry and, in particular, how well they are able to: use facts about the angle sum and exterior angles of triangles to calculate missing angles; apply angle theorems to parallel lines cut by a transversal; interpret geometrical diagrams using mathematical properties to identify similarity of triangles.

Material Type: Assessment, Lesson Plan

When Does SSA Work to Determine Triangle Congruence?

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The triangle congruence criteria, SSS, SAS, ASA, all require three pieces of information. It is interesting, however, that not all three pieces of information about sides and angles are sufficient to determine a triangle up to congruence. In this problem, we considered SSA. Also insufficient is AAA, which determines a triangle up to similarity. Unlike SSA, AAS is sufficient because two pairs of congruent angles force the third pair of angles to also be congruent.

Material Type: Activity/Lab

Author: Illustrative Mathematics

Statistical Analysis to Rank Baseball Players

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As Trudy DentonŐs statistics students assemble their baseball dream team, they must compare and analyze data for four Yankee players and then rank them in terms of their homerun data to fill the last spot on the team.Many factors go into determining which player is the greatest NY Yankee homerun hitter in history. Working in partners, students compare playerŐs data and must reconcile differences such as number of seasons and factors that impact performance. Using Fathom software, students are able to build stacked box plots and complete a comparative analysis of the data before ranking the players. There is a consensus about the top two players but students must defend and explain their choices for the remaining two players.This idea can be easily transferred to other statistical analysis and even modified to suit other grade levels, including middle school.

Material Type: Lesson Plan, Teaching/Learning Strategy

Measurement & Experimentation Laboratory

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This course serves as an introduction to working in an engineering laboratory. The student will learn to gather, analyze, interpret, and explain physical measurements for simple engineering systems in which only a few factors need be considered. Upon successful completion of this course, the student will be able to: Interpret and use scientific notation and engineering units to describe physical quantities; Present engineering data and other information in graphical and/or tabular format; Use automated systems for data acquisition and analysis for engineering systems; Work in teams for experiment design, data acquisition, and data analysis; Use elementary concepts of physics to analyze engineering situations and data; Summarize and present experimental design, implementation, and data in written format; Use new technology and resources to design and perform experiments for engineering analysis. (Mechanical Engineering 301)

Material Type: Full Course

Repeating Decimals

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This lesson unit is intended to help teachers assess how well students are able to: translate between decimal and fraction notation, particularly when the decimals are repeating; create and solve simple linear equations to find the fractional equivalent of a repeating decimal; and understand the effect of multiplying a decimal by a power of 10.

Material Type: Assessment, Lesson Plan

Foundations of Real World Math

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In this course, you will cover some of the most basic math applications, like decimals, percents, and even fractions. You will not only learn the theory behind these topics, but also how to apply these concepts to your life. You will learn some basic mathematical properties, such as the reflexive property, associative property, and others. The best part is that you most likely already know them, even if you did not know the proper mathematical terminology.

Material Type: Activity/Lab, Full Course, Homework/Assignment, Reading, Syllabus

Proportion and Non-proportion Situations

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This lesson unit is intended to help teachers assess whether students are able to: identify when two quantities vary in direct proportion to each other; distinguish between direct proportion and other functional relationships; and solve proportionality problems using efficient methods.

Material Type: Assessment, Lesson Plan

Steps to Solving Equations

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This lesson unit is intended to help teachers assess how well students are able to: form and solve linear equations involving factorizing and using the distributive law. In particular, this unit aims to help teachers identify and assist students who have difficulties in: using variables to represent quantities in a real-world or mathematical problem and solving word problems leading to equations of the form px + q = r and p(x + q) = r.

Material Type: Assessment, Lesson Plan

Hexagon

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A web page and interactive applet illustrating the properties of a hexagon (6 sided polygon). The applet shows a hexagon where the user can drag any vertex to reshape it. User can see that the interior and exterior angles are constant in a regular hexagon, but vary in an irregular version. Controls allow the display or hiding of the diagonals, and triangles within the hexagon. The web page lists the properties of a hexagon including interior angles, exterior angles, sum of exterior angles, area, number of diagonals and number of internal triangles. Links to pages with generalized properties of all polygons. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Material Type: Reading, Simulation

Author: John Page

10X Bigger!

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Students will explore multi-digit numbers and the relationship between ones, tens and hundreds; a digit in one place is 10x the digit in the place to its right. Students will use their bodies to represent digits in multi-digit numbers up to the hundredths place and compare these numbers using <, =, >. Students will use their bodies as multi-digit numbers to add and subtract.

Material Type: Activity/Lab, Teaching/Learning Strategy

Author: Admin