This study explores the development of students' strategies from primary to secondary school when solving proportional and additive problems. Its goal is to identify characteristics of the development of proportional reasoning and how the use of integer and non-integer ratios and the discrete or contin...
Suppose the constant of proportionality is positive and y varies directly as x. When one of the variables increases, how will the other change? Explain your reasoning. Suppose y is directly proportional to x and that y=40 when x=8 (a) find the constant of proportionality k. (b) Use y...
How to Solve a One-Step Problem Involving Ratios How to Teach Proportional Reasoning: Strategy & Activities Proportion Lesson Plan for Elementary School Calculating Unit Rates Associated with Ratios of Fractions How to Solve Ratio Word Problems ...
How to Find the Volume of a Box Instructor Kimberly Osborn Cite this lesson Volume is simply the amount of space that a substance (or object) takes up in a container. In this lesson, you will specifically explore the equation and application for the volume of a box. ...
Proportional reasoning in the valuation of military and civilian lives - Friedrich, Dood - 2009 () Citation Context ...y less interested in the problem at hand. As a result, these individuals may rely more heavily on affective and cognitive heuristics—which have previously been shown to ...
62), enabling teachers to see the questions, concerns, and challenges that may arise within a learning activity and develop their pedagogical reasoning. In the context of STEM education, teacher-as-school-student experiences could provide a starting point for envisioning the integration of ...
Mapping and understanding feelings of representation is imperative because even in countries with well-functioning institutions of representative democracy and proportional electoral systems, many citizens are dissatisfied with the way democracy works (Aarts and Thomassen2008; Linde and Ekman2003). They may...
(a) the amount of work that can be done in a given time and (b) how fast a given amount of work can be done? Power: Power is a scalar quantity that denotes the rate at which energy can be supplied t...
In this lesson, learn how to solve ratio problems and find ratios. Understand how to approach ratio word problems and practice with real-world...
Learn how to find the maximum or minimum value of a quadratic function, and which functions have minimum or maximum values.