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* CCSS and PARCC specifically mention AA in relation to similar triangles. Engage NY also mentions SSS and SAS methods.
Engage NY specifies dilations not centered at the origin.
LESSONS:
* calculator link
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Dilations (properties, definition, scale factors, use on coordinate axes)
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Stretches (vertical and horizontal dilations)
not specified in CCSS/PARCC
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Similar Figures (definitions, similarity transformations)
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Proving Similar Triangles (AA (proof), SSS, SAS)
see * above  
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"Side Splitter" Theorem (theorem, converse, proofs, example)
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Angle Bisector Theorem (theorem, proof, example)
not specified in CCSS/PARCC
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Measurements in Similar Figures (perimeters, areas, volumes)
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Proof Problems for Similar Triangles (similar triangles, proportions, products)
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Construct: Similar Triangles (Note: this links to Construction section.)
 
Similarity in relation to Circles Proofs appears under Circles


PRACTICE:
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Practice with Similarity (numerical problems)
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REFRESHERS: (while these topics are mostly "review", you may also find new information here)
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Transformations - Dilations (intuitive, similarity, on coordinate axes)
Note: this links to the Transformation section.
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Ratios and Proportions (rules, properties)