CK-12 Foundation
Ck 12: Geometry: Triangle Classification Grade 8
[Free Registration/Login may be required to access all resource tools.] Classifying triangles by using angle measures and side lengths.
CK-12 Foundation
Ck 12: Geometry: Triangle Classification Grades 9 10
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to classify triangles based on their angles and sides.
CK-12 Foundation
Ck 12: Geometry: Triangle Classification by Side Lengths
[Free Registration/Login may be required to access all resource tools.] Classify different types of triangles by their side lengths.
CK-12 Foundation
Ck 12: Geometry: Trigonometric Ratios With a Calculator Grades 9 10
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to find trigonometric ratios with a calculator in order to find missing sides of right triangles.
CK-12 Foundation
Ck 12: Life Science: Animal Behaviors
[Free Registration/Login may be required to access all resource tools.] Barking, purring, and playing are just some of the ways in which dogs and cats behave. These are examples of animal behaviors. Animal behavior is any way that...
CK-12 Foundation
Ck 12: Life Science: Bird Reproduction
[Free Registration/Login may be required to access all resource tools.] How do birds reproduce? We know that chickens lay eggs. But how do they do that? Learn more about bird reproduction in this learning module produced by CK-12.
CK-12 Foundation
Ck 12: Life Science: Cancer
[Free Registration/Login may be required to access all resource tools.] Cancer is a disease that causes cells to divide out of control. Normally, the body has systems that prevent cells from dividing out of control. But in the case of...
CK-12 Foundation
Ck 12: Life Science: Mutations
[Free Registration/Login may be required to access all resource tools.] The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A...
CK-12 Foundation
Ck 12: Life Science: Pathogens
[Free Registration/Login may be required to access all resource tools.] Has this ever happened to you? A student sitting next to you in class has a cold. The other student is coughing and sneezing, but you feel fine. Two days later, you...
CK-12 Foundation
Ck 12: Life Science: Social Behavior of Animals
[Free Registration/Login may be required to access all resource tools.] Why is animal communication important? Without it, animals would not be able to live together in groups. Animals that live in groups with other members of their...
CK-12 Foundation
Ck 12: Measurement: Addition and Subtraction With Time
[Free Registration/Login may be required to access all resource tools.] Find sums and differences of measurements of time by converting units.
CK-12 Foundation
Ck 12: Measurement: Comparison of Metric Measurements
[Free Registration/Login may be required to access all resource tools.] Compare and order given metric units of measurement.
CK-12 Foundation
Ck 12: Measurement: Conversion of Systems of Measure
[Free Registration/Login may be required to access all resource tools.] This lesson covers changing units of measure into another unit of measure.
CK-12 Foundation
Ck 12: Measurement: Conversion Using Unit Analysis
[Free Registration/Login may be required to access all resource tools.] Use unit analysis to convert measurements.
CK-12 Foundation
Ck 12: Measurement: Conversion Using Unit Analysis
[Free Registration/Login may be required to access all resource tools.] Use rates and unit analysis in real-world situations when problem solving.
CK-12 Foundation
Ck 12: Measurement: Distances or Dimensions Given Scale Measurements
[Free Registration/Login may be required to access all resource tools.] Find actual distances or dimensions using a given scale, ratio, or proportion.
CK-12 Foundation
Ck 12: Measurement: Estimation of Conversion to Metric Units
[Free Registration/Login may be required to access all resource tools.] Estimate equivalence between metric units of measurement and customary units of measurement
CK-12 Foundation
Ck 12: Measurement: Identification of Units of Capacity
[Free Registration/Login may be required to access all resource tools.] Convert and identify equivalent customary units of capacity.
CK-12 Foundation
Ck 12: Measurement: Length Measurements to a Fraction of an Inch
[Free Registration/Login may be required to access all resource tools.] Measure different lengths to a fraction of an inch.
CK-12 Foundation
Ck 12: Measurement: Metric System
[Free Registration/Login may be required to access all resource tools.] Measure length in metric units.
CK-12 Foundation
Ck 12: Measurement: Scale Distances or Dimensions
[Free Registration/Login may be required to access all resource tools.] Find scale dimensions using actual measurements and a ratio or proportion.
CK-12 Foundation
Ck 12: Algebra: Additive Inverses and Absolute Values Grades 8 9
[Free Registration/Login may be required to access all resource tools.] Learn about additive inverses and absolute values.
CK-12 Foundation
Ck 12: Algebra: Comparison of Numbers in Scientific Notation
[Free Registration/Login may be required to access all resource tools.] Students learn to compare and order numbers in scientific notation. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Algebra: Inverse Property of Addition in Decimal Equations
[Free Registration/Login may be required to access all resource tools.] Identify and apply the inverse property of addition in decimal operations with expressions