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New videos from Khan Academy 2020-08-11T22:43:34.000000
Aggiornato: 1 ora 28 min fa

### Interpreting trigonometric graphs in context

Gio, 2020-07-30 05:44
When a trigonometric function models a real-world relationship, we can assign meaning to its midline, amplitude and period.

### Interpreting expressions with multiple variables: Resistors

Gio, 2020-07-30 05:44
Given the expression for the total resistance in an electric circuit with two resistors, analyze the expression to tell what happens to the total resistance when the resistance of one resistor increases and the resistance of the other resistor stays the same.

### Measuring lengths in different units

Mar, 2020-07-28 17:50
Sal measures the same rectangle in different units and then compares the size of the different units.

### Identifying value in digits

Mar, 2020-07-28 17:50
Sal uses place value to identify the value of digits.

### Length word problem example (US Customary)

Ven, 2020-07-24 18:05
Sal shows how to solve a length word problem example.

### Measuring in inches

Ven, 2020-07-24 14:02
Sal measures a flower in inches.

### Getting a sense of inches and feet

Ven, 2020-07-24 13:36
Sal describes the difference between inches and feet and helps to decide which unit of measure is best for measuring different objects.

### Partitioning rectangles

Ven, 2020-07-24 13:36
Sal explains how to partition a rectangle into 2 rows and 5 columns.

### Shapes and angles

Ven, 2020-07-24 13:35
Sal explains how to identify the angles on different shapes and then draw shapes based on their number of angles.

### Adding four two digit numbers

Gio, 2020-07-23 13:10
Sal uses place value to add four two digit numbers.

### Getting a sense of meters and centimeters

Gio, 2020-07-23 13:10
Sal explains how to get a sense of the size of meters and centimeters and applies it to measuring objects.

### Time on a number line

Gio, 2020-07-23 13:10
Sal tells time on a number line.

### Adding two digit numbers on a number line

Gio, 2020-07-23 13:10
Sal uses a number line to add two digit numbers on a number line.

### Multi-step subtraction word problem

Gio, 2020-07-23 13:10
Sal solves a multi-step subtraction word problem using a tape diagram.

### Adding multiple 2-digit numbers word problems

Gio, 2020-07-23 13:10
Sal solve word problems that involve adding multiple two digit numbers by using place value.

### Multi step addition word problem

Gio, 2020-07-23 13:10
Sal solves a multi-step addition word problems using a tape diagram.

### Factoring quadratics with a common factor

Gio, 2020-07-16 23:50
We can factor quadratics by first pulling out a common factor so the result looks like a(x+b)(x+c).

### Factoring completely with a common factor

Gio, 2020-07-16 23:50
We can factor quadratics by first pulling out a common factor so the result looks like a(x+b)(x+c).

### Analyzing tone through word choice | Reading

Gio, 2020-07-16 19:05
Tone communicates how an author feels about their topic. How do good readers pick up on tone from clues left by the words an author chooses? Let’s discuss, and find out together!

### How the delivery of a speech affects the impact of the words

Gio, 2020-07-16 19:05
Good public speakers use a range of techniques to convey their message to their audience, which goes beyond just the words they say. They become actors, who are telling us a story on stage not just with their lines but with their physical presence.