# OERB Math Resources by lanyuehua

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```									Bar Graphs: Interactive Exercise: Grade 7 Mathematics
Resource ID : ELO1033210
Description : Interactive LO. Audio narrative. Read-along with mouse-overs. Exposition followed by interactive
graphing activity. Self-marking. Students have difficulty graphing and remebering what is involved in doing a neat
accurate graph. This will introduce the concept of bar graphs. In this activity the students will learn how to do a bar
graph using hypothetical information. It will take them through the stages fron start to finish and then they will
create their own. It will prepare them with solid fundamentals for future work in advanced graphing and statistical
analysis by emphasizing neatness and accuracy.

Resource ID : ELO1019580
Description : Students review adding fractions which have like denominators.
Keywords : fraction, addition, like denominator

Resource ID : ELO1019580
Description : Students review adding fractions which have like denominators.
Keywords : fraction, addition, like denominator

Resource ID : ELO1088060
Description : In this learning object, students practice converting between fractions, decimals, and percents. The
activity takes students through several review examples and then the student will practice converting fractions to
decimals and percents through an interactive drag and drop game.

Resource ID : ELO1033260
Description : In this interactive LO, students will learn and apply the rules of integer multiplication. Students can
sometimes experience difficulty remembering the somewhat complex set of rules that are applied in the
multiplcation of integers. A clever game-oriented analogy involving "teammates" and "opponents," clarifies these
rules in an appealing grade-approrpiate way that will encourage students to remember the rules, and apply them
successfully in their work.
Keywords : multiplication, integer, times, rules, examples, multiple negative numbers, multiple positive numbers,
multiple positive and negative numbers, signed numbers, multiplication rules

Integers – Negative or Positive? Interactive Tutorial Grade 8
Resource ID : ELO1033460
Description : Students will be shown two rules to help them multiply and divide integers. They will then have the
opportunity to answer several questions on their own.
Keywords : negative, positive, differentiations, numbers, charges, polarity, superscripts, values, absolute, signs

Subtraction of Integers Grade 8 Math
Resource ID : ELO1033400
Description : A particularly vexing topic in mathematics pedagogy is the subtraction of integers. The oft-invoked
concept of 'zero-principle,' while intended to be an aid to clarification, proves to be at times, much to the contrary,
a source of frustration for both teachers and students. This interactive LO, developed to address these issues,
works around the notion of 'zero-principle' by invoking a Hegelian dialectical approach wherein students apply the
principle of polar opposites both to the integer charges and the operations performed on them. Put simply,
students learn to subtract integers by changing the sign of the subtrahend and performing instead of subtraction,
addition on all the terms. An exposition with graphics and audio voice-over is followed by a problem set, wherein
students can practice step-by-step the change-in-signs method.
Keywords : add the opposite, plus, minus, negative, positive, opposite numbers, addition, practice, exercises,
interactive learning

Measure This (MAT2L): This is a good resource for elementary resource (tagged for MAT2L but could be
used for many elementary grades below this)
Resource Bank ID: ELO1149430 - This learning object allows students to work on their measurement skills,
including the choice of ruler and the correct interpretation and reporting of data. Students will be required to
calculate measurements in both imperial and metric units.

The Estimate is Right (MAT2L): This would be a good resource for elementary students as well.
Resource ID : ELO1149450
Description : The students will gain a realistic idea of how well they can estimate amounts in a fun and accessible
environment. They will be required to use mental math to multiply the costs of products.
Interactive Graphing (MAT2L)
Resource ID : ELO1149420
Description : Students will work through a demonstration of a linear graph on a Cartesian plane and then create
one of their own, using real world data. This resource has also been developed for MFM 1P: Foundations of
Mathematics[Applied].

Resource ID : ELO1151990
Description : In this activity, students practice their ability to read and interpret graphs. They are going to run a
lemonade stand for the summer to earn some money. Based on last year’s results (displayed in a table), they will
be asked to determine the amount of lemonade they can expect to sell. They must then correctly determine the
amount of lemonade mix and water needed to make the desired amount of lemonade. The students will use their
knowledge of tables, ratios, metric conversions, and percent to complete the activity.

What Does a Percent Look Like? (MAT1L) This could be used at the elementary level as well.
Resource ID : ELO1142760
Description : This activity allows students to visually explore percentages through the shading of a circle and a
rectangle.
Keywords : percent, circle, rectangle, MAT2L, estimate, shapes

Making Change (MAT1L)
Resource ID : ELO1142700
Description : In this activity, students will practice making change from various amounts of money. They will use
the "counting up" strategy to ensure that they are accurate. This resource has also been developed for MAT 2L:
Locally Developed Compulsory Credit Course, Mathematics[Open].

Moveable Ruler (MAT1L)
Resource ID : ELO1142710
Description : In this activity, students practice measuring the metric length of different objects using a movable
ruler. This resource has also been developed for MAT 2L: Locally Developed Compulsory Credit Course,
Mathematics[Open].

Balance the Scale (MAT1L)
Resource ID : ELO1142720
Description : This activity allows students to practice converting between metric units of mass. Students will
convert between mg, g, and kg by dragging objects with various masses onto a scale to make it balanced.

Jeopardy (MAT1L)
Resource ID : ELO1142740
Description : This activity allows students to consolidate their understanding of perimeter, volume and area in a
fun, Jeopardy-style game. This resource has also been developed for MAT 2L: Locally Developed Compulsory
Credit Course, Mathematics[Open].

Find the Ratio and Rate (MAT1L)
Resource ID : ELO1142780
Description : This drag-and-drop activity allows students to identify different real-life examples as either a rate or
a ratio.

Resource ID : ELO1142790
Description : In this activity, students must buy as much food as possible for a Food Bank's Thanksgiving food
drive. As part of the activity, students will calculate the unit rate of six different items and determine how many of
each item they can buy so as not to exceed a maximum amount of money. This resource has also been developed
for MAT 2L: Locally Developed Compulsory Credit Course, Mathematics[Open].

How to Create a Bar Graph (MAT2L)
Resource ID : ELO1149500
Description : Students will have a chance to practice their skills in creating bar graphs and interpreting data from
bar graphs.
Keywords : interpolation, extrapolation, graphs, bar graph, column graph

Investigating Fractions (MAT1L)
Resource ID : ELO1150400
Description : This learning resource allows students to explore a variety of situations where fractions are
compared and relationships are recognized in order to draw conclusions.
Algebra Balance Scales (MFM1P): solving algebraic equations in an interactive way.
Resource Bank ID: ELO1030600 - Interactive resource demonstrates to students how equations are
balanced and solved, using a virtual balance-type scale as an analogy. The screen will display a level
balance. A drag and drop device loads 3 blocks onto one side, which causes the balance to tilt. Students
need to load 3 blocks onto the other side in order to return the balance to its level position, and by analogy,
balance the equation.

Are you Ready to Explain My Point? (MFM1P)
Resource ID : ELO1241270
Description : Students will identify the point of intersection of two linear relations in the context of various real-life
applications. Students will answer multiple choice questions about each application in this interactive learning
object.
Keywords : identify point of intersection, coordinates, interpreting graphs, math, linear relations

Discount and Taxes (MFM1P)
Resource ID : ELO1084750
Description : Demonstrates real life applications in the use of discounts and taxation on sales. Through problem
solving the students will travel through a virtual mall. While shopping, they will purchase various items that are on
sale. The student will be required to figure out the amount of the discount, the subtotal and then the tax on the
goods. Finally they will tally each receipt.

We Walk the Line – Integers (MFM1P)
Resource ID : ELO1089910
Description : Students develop a spatial understanding of integers with all signs being reinforced as representing
directions(left and right). They will develop their skills in collecting integers using simple addition and subtraction.
Keywords : adding and subracting integers, directions

Sum of Integers (MFM1D)
Resource ID : ELO1093660
Description : This is a resource to help students visualize the addition and subtraction of integers, especially
around the number zero.

Integers Thermometers (MFM1P)
Resource ID : ELO1093630
Description : This is a resource to aid students in visualizing and understanding addition and subtraction of
integers.
Keywords : values, number line, negative numbers, positive, mathematics

Graphing a Linear Equation Using 2 Intercepts – Lesson and Interactive Exercises (MPM1D)
Resource ID : ELO1028450
Description : This introductory level resource can be used to help students with the basics of graphing slope and
intercept linear equations. Self-marking. Solutions appear at students' discretion. Replay function generates new
question.

Determining the Equation of a Line from 2 Points- Lesson and Interactive Exercises (MPM1D)
Resource ID : ELO1028430
Description : This resource can be used to help students learn and practice graphing slope and intercept linear
equations. Replay feature generates new questions.

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