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A Human Number Line
Sixth graders create a human number line through use of symbols, equality, inequality, addition, subtraction, solving equations and inequalities
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A Human Number Line
Eighth graders act out a number line using integers -10 to 10 on large cards. They practice addition and subtraction of these integers to gain explain the relative size of numbers.
National Security Agency
Ordering, Adding and Subtracting Integers
Prealgebrarians use colored chips, stickers, and pencils to explore the world of integers. They discover absolute value, compare positive and negative integers, and apply operations to them. A detailed procedure for the three-part...
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Subtracting Integers with Counters
Students subtract integers using counters. In this algebra lesson, students solve linear equations using an online tool. They use subtraction to isolate the variable.
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Adding and Subtracting Polynomials Using Algebra Tiles
Students add and subtract polynomials. In this algebra lesson, students use algebra tiles to perform operation of polynomials. They model their problems and understand how to combine like terms using tiles.
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Surface Area and Volume
Students are introduced to the notion of surface area and volume, learn the terminology used with surface area and volume and have experimented with the surface area and volume of different prisms.
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An Introduction To Solving And Graphing Inequalities
Learners graph inequalities and solve the equations. In this algebra instructional activity, students graph their solutions on a number line and create an inequality for a word problem.
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Sets an the Venn Diagram
Students explore the characteristics of sets and Venn Diagrams. Given data, students practice determining the placement of elements in a Venn Diagram. Students discuss the correspondence between data sets and their graphical...
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Patterns in Pascal's Triangle
Students examine the patterns that exist in Pascal's Triangle. They explore multiples and factors. Sudents use an applet to create and color the multiples in Pascal's Triangle.
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Stem-and- Leaf Plots
Learners are introduce to the notion of stem-and-leaf plots. They use stem-and-leaf plots to calculate the mean, median, and mode of a set of data. Students use computers to learn about stem-and-leaf plots.
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Clock Arithmetic and Cryptography
Learners perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Learners apply their multiplication, division, addition, and subtraction skills.
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Estimation
Learners estimate quantity, length, and area. Students practice making comparison estimations of different items and estimate whether or not the amount is greater or less than a certain amount. Learners practice making estimations.
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Introduction to Arithmetic and Geometric Sequences
Students examine the concept of sequences. Students create a sequence using varied starting numbers, multipliers, and add on values. Students practice determining the starting values to use in order to produce a desired sequence.
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Surface Area and Volume
Students are introduced to the notion of surface area and volume. Students review surface area and volume by finding the area of a two-dimensional shape. They practice using the computer to create different surface area shapes.
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Outbreak!
Eleventh graders explore the spread of a disease through a population. In this Algebra II instructional activity, 11th graders analyze graphical data representing they spread of a disease. Students produce a graph of the virus data,...
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Stem-and-Leaf Plots
Students are introduced to stem-and-leaf plots and calculating the mean, median, and mode from the plots.
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Impossible Graphs
Pupils distinguish between possible and impossible graphs of functions, and to learn why some graphs are impossible. They have practiced plotting functions on the Cartesian coordinate plane
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cDNA Sequencing By Restriction Project
Students try to confirm the sequence of a given cDNA clone using the WWW tools and traditional restriction analysis. They grow the clone, prep the plasmid, cut the plasmid with restriction enzymes and compare their results to what was...