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New exercises from Khan Academy 2020-01-21T19:46:06.721007
Mis à jour : il y a 1 heure 51 min

Westward expansion: economic development

il y a 40 min 1 sec
Test your knowledge on the economic causes and effects of settlement of the West.

Solve triangles using the law of sines

il y a 3 heures 50 min
Solve missing triangle measures using the law of sines.

Predicting motion using the center of mass

lun, 2020-01-20 04:54
Practice predicting the motion of an object using the center of mass of the system. 

Cellular respiration

lun, 2020-01-20 04:47
Test your knowledge of cellular respiration!

Limitations of GDP

lun, 2020-01-20 04:44
Practice what you've learned about the limitations of GDP in this exercise.

Foundational concepts: determinants of currency supply and currency demand

ven, 2020-01-17 17:46
Practice what you have learned about the things that shift the supply of a currency or the demand for a currency in the foreign exchange market.

Patterns in multiplication tables

ven, 2020-01-17 01:33
Practice discovering and explaining patterns in multiplication tables.

Word problems: Solving quadratic equations

mer, 2020-01-15 19:47
Let's solve some word problems involving quadratic equations.

Factoring quadratics with a common factor

mer, 2020-01-15 07:40
Practice factoring quadratics by first pulling out a common factor so the result looks like a(x+b)(x+c).

Identify line symmetry

mar, 2020-01-14 23:49
Practice identifying lines of symmetry on shapes and determining whether a shape has line symmetry.

Elimination strategies

mar, 2020-01-14 20:36
Practice recognizing effective strategies when using elimination to solve a system of equations.

Making inferences from random samples

lun, 2020-01-13 17:53
Given a random sample, practice figuring out what can we reasonably infer about the entire population?

Draw angles

dim, 2020-01-12 21:56
Use a protractor to construct angles.

Interpret dot plots with fraction operations

dim, 2020-01-12 21:44
Interpret fraction data on dot plots to solve word problems.

Simple harmonic motion: Finding speed, velocity, and displacement from graphs

dim, 2020-01-12 21:37
Practice finding speed, velocity, and distance traveled for an oscillator from graphs of simple harmonic motion. 

Quantization of charge in experimental data

dim, 2020-01-12 21:25
Practice applying the quantization of charge to make conclusions from graphs and other experimental data. 

Conservation of angular momentum calculations

dim, 2020-01-12 21:21
Applying the conservation of angular momentum to collisions to calculate angular quantities such as angular velocity.

Extracellular structures and intercellular junctions

dim, 2020-01-12 21:05
Test your knowledge of extracellular structures and intercellular junctions!

Area and perimeter situations

dim, 2020-01-12 20:52
Determine if a situation represents area or perimeter.

Relationship between electric force, charge, and distance

dim, 2020-01-12 20:30
Practice calculating the electric force between two charges when the charge or distance between charges is changed. 

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