XATHERYN ACADEMY

A library to learn from, and a safer way to search.

Read Xatheryn's own books, from kindergarten through high school and college, each with lessons, quizzes, and a unit test. Search finds answers in the library first, then across the web from trusted sources like the Library of Congress, the National Archives, the Smithsonian, and NASA, never from opinion sites.

Grade 4 Mathematics

Xatheryn's
Adding and Subtracting Fractions
Jonathan G. Thorn
Grade 4 · mathematics
Adding and Subtracting Fractions3 lessons + unit test✓ Fact-checked
Xatheryn's
Factors, Multiples and Patterns
Jonathan G. Thorn
Grade 4 · mathematics
Factors, Multiples and Patterns4 lessons + unit test✓ Fact-checked
Xatheryn's
Multiplying a Fraction by a Whole Number
Jonathan G. Thorn
Grade 4 · mathematics
Multiplying a Fraction by a Whole Number3 lessons + unit test✓ Fact-checked

Grade 4 Reading and Language

Xatheryn's
Independent Reading and Fixing Mistakes
Jonathan G. Thorn
Grade 4 · reading
Independent Reading and Fixing Mistakes3 lessons + unit test✓ Fact-checked