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KhanAcademyExercises

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New exercises from Khan Academy 2020-08-07T05:32:39.000000
Aggiornato: 2 min 59 sec fa

Periodic trends: metallic, nonmetallic, electropositive, & electronegative characters

Mar, 2020-05-12 11:42
Let's practice to identify the periodic trends of losing and gaining and electrons when we go from left to right and top to bottom of the periodic table.

Physical and chemical changes

Mar, 2020-05-12 11:27
Let's practice to differentiate between a physical change and a chemical change by solving the given questions.

Subtracting decimals (tenths)

Lun, 2020-05-11 23:49
Subtract small whole numbers and tenths like 1.6-0.3

Subtract decimals (hundredths)

Lun, 2020-05-11 23:49
Subtract small whole numbers, tenths, and hundredths like 0.6-0.43 or 1.58-0.5 

Adding decimals (hundredths)

Lun, 2020-05-11 23:39
Add more challenging whole numbers, tenths, and hundredths like 5.7+4.51 or 47.75+11.98

Adding decimals (tenths)

Lun, 2020-05-11 23:38
Add larger numbers with tenths like 40.1+7.6

Defining transformations

Lun, 2020-05-11 22:09
Refine definitions of rigid transformations. Given a description of the effect of a transformation, determine which rigid transformation it is.

Identify parallel and perpendicular lines

Lun, 2020-05-11 22:07
Recognize parallel and perpendicular lines in geometric figures and pictures. 

Focus on causation: Human migration

Lun, 2020-05-11 21:30
Let's explore more perspectives on why populations moved.

Convert units (metrics)

Lun, 2020-05-11 21:17
Convert between metric measures of distance, volume, and mass.

Hundreds, tens, and ones

Lun, 2020-05-11 19:44
Practice thinking about place value of 3-digit numbers as hundreds, tens, and ones.

Frequently confused words: assorted

Lun, 2020-05-11 17:33
Can you identify when to correctly use these words that often get confused with other words?

Obscuring the truth: reading realistic fiction; The Open Window 8

Lun, 2020-05-11 16:42
8th grade reading comprehension practice using Saki's The Open Window

Mysteries of the Past: reading realistic fiction; A View from the Walnut Tree 7

Lun, 2020-05-11 16:23
7th grade reading comprehension practice using historical fiction

Mysteries of the Past: reading informational text; The Roanoke Voyages 7

Lun, 2020-05-11 15:09
7th grade reading comprehension practice using an informational text about the lost colony of Roanoke

Mysteries of the Past: vocabulary; The Roanoke Voyages 7

Lun, 2020-05-11 15:08
7th grade applied vocabulary practice using an informational text about the lost colony of Roanoke

Obscuring the truth: reading realistic fiction; One Big Mess 8

Lun, 2020-05-11 15:02
8th grade reading comprehension practice using realistic fiction

Obscuring the truth: vocabulary; Why Do We Lie? 8

Lun, 2020-05-11 14:56
8th grade applied vocabulary practice using an informational text about lying

Obscuring the truth: reading informational text; The Science of Lying 8

Lun, 2020-05-11 14:49
8th grade reading comprehension practice using an informational text about the science of lying

Obscuring the truth: reading informational text; Why Do We Lie? 8

Lun, 2020-05-11 14:46
8th grade reading comprehension practice using an informational text about lying

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