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New exercises from Khan Academy 2020-08-05T17:18:11.000000
Updated: 9 min 44 sec ago

### Journeys West: reading informational text; Migrations to the West 4

Tue, 2020-07-28 18:37

### Quadratic word problems (standard form)

Tue, 2020-07-28 18:04
Solve real-world word problems that involve quadratic models. In this exercise, that models are given in standard form.

### Journeys West: reading informational text; The Trail of Tears 4

Tue, 2020-07-28 17:38

### Inventing Progress: reading realistic fiction; Robots and Turtles 5

Tue, 2020-07-28 17:12

### Inventing Progress: reading realistic fiction; The Ingenuity Fair 5

Tue, 2020-07-28 16:38

### Inventing Progress: reading informational text; Competition and Collaboration 5

Tue, 2020-07-28 16:25

### Inventing Progress: reading informational text; Discovering the Process of Invention 5

Tue, 2020-07-28 15:51

### Inventing Progress: vocabulary; Discovering the Process of Invention 5

Tue, 2020-07-28 15:20
5th grade vocabulary practice using informational text

### Dot structures: simple homoatomic covalent molecules

Tue, 2020-07-28 14:12
Let's practice identifying dot structures of simple covalent molecules.

### Bits (binary digits)

Tue, 2020-07-28 13:40
Check your understanding of bits (binary digits) in this set of free practice questions designed for AP Computer Science Principles students.

### Bytes

Tue, 2020-07-28 13:32
Check your understanding of bytes (groupings of 8 bits) in this set of free practice questions designed for AP Computer Science Principles students.

### Identify the value of a digit (ones, tens, hundreds)

Tue, 2020-07-28 13:20
Practice thinking about the value of each digit in a number within 1000.

### Storing text in binary

Tue, 2020-07-28 13:14
Check your understanding of the ways that computers can store text as binary data in this set of free practice questions designed for AP Computer Science Principles students.

### Balancing chemical equations

Tue, 2020-07-28 05:53
Let's practice balancing chemical equations.

### Binary numbers

Mon, 2020-07-27 15:16
Practice converting between binary numbers and decimal numbers in this set of free practice questions designed for AP Computer Science Principles students.

### Measure lengths (inch, ft)

Mon, 2020-07-27 13:05
Practice measuring items on a ruler. All items are measured in inches or feet.

### Units of length (inch, ft)

Mon, 2020-07-27 13:03
Practice determining the best form of measurement to use when measuring different objects. Measurements used are inches and feet.

### Calculating and interpreting residuals

Mon, 2020-07-27 02:44
Practice calculating residuals in scatterplots and interpreting what they measure.

### Redundancy and fault tolerance

Sun, 2020-07-26 21:43
Check your understanding of redundancy and fault tolerance in Internet routing in this set of free practice questions designed for AP Computer Science Principles students.

### Storing data in variables

Sun, 2020-07-26 14:31
Practice variable assignment in the AP CSP pseudocode, in this set of free practice questions designed for AP Computer Science Principles students.