A Cybrary, cyber-library, is a list of categories containing annotated links to webpages, research papers, and applications ordered by subject/content areas. The list is generated by many teachers and students working in the specific subject area.

Each link also has a discussion area behind it. When you add a link, please start the discussion area.

Cybrary (4-5) contains links to activities, links to research and links to teacher tools suitable for 4-5 students.2014 and 2016 CCRS Comparison Document

Link to 4th Grade Scaffolding Document MDE CCRS

Link to 5th Grade Scaffolding Document MDE CCRS

**Instructions for adding a link to a category:**

*Select*the**category**listed below. A new page appears.- In the General area,
*click***Turn editing on**(upper right). *Click***+Add an activity or resource**. A window with a list appears.*Scroll***to the bottom of the window**and*click***the radio button adjacent to URL**.*Click***Add**. A new window opens.*Enter***the page title**of the link you have selected.*Enter*a**description**of the link.*Select*the**check box**labeled .**Display description on project page.***Enter***the**External URL you have selected**.***Click*Appearance. The display area opens.*Un-check*the**box**adjacent to**Display URL description.***Open*the**display****drop-down menu**and*select***in Pop-up**.- At the bottom of the page,
*click***Save and return to project**.

#### Draw and identify lines and angles, and classify shapes by properties of their lines and angles.

Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.

Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.

Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.

This include links, apps and research in fractions that can be used by teachers and students.

Mississippi Standards 4.MD and 5.MD

This includes links, apps, and learning resources for Measurement and Data for teachers, parents, and students.

[4.OA Operations and Algebraic Thinking]

**4.OA.A.1** Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations.

**4.OA.A.2** Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison.1

**4.OA.A.3** Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.

https://mathsciencemusic.org