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2. Fractional coloring - Wikipedia

   en.wikipedia.org/wiki/Fractional_coloring

   Fractional coloring is a topic in a young branch of graph theory known as fractional graph theory. It is a generalization of ordinary graph coloring. In a traditional graph coloring, each vertex in a graph is assigned some color, and adjacent vertices — those connected by edges — must be assigned different colors.

3. Number bond - Wikipedia

   en.wikipedia.org/wiki/Number_bond

   What is a Number Bond? - visual explanation of number bonds, and link to free printables. Let's play math: Number bonds; Number Bond Worksheet; Number Bonds to 20 - Free printable PDF number bonds to 20 worksheet (number bonds to 10 and to 100 also available) Making sense of number bonds. - A detailed explanation of what number bonds are.

4. Cuisenaire rods - Wikipedia

   en.wikipedia.org/wiki/Cuisenaire_rods

   Cuisenaire rods illustrating the factors of ten A demonstration the first pair of amicable numbers, (220,284). Cuisenaire rods are mathematics learning aids for pupils that provide an interactive, hands-on [1] way to explore mathematics and learn mathematical concepts, such as the four basic arithmetical operations, working with fractions and finding divisors.

5. Pattern Blocks - Wikipedia

   en.wikipedia.org/wiki/Pattern_blocks

   Pattern Block Templates: Printable Worksheets for Pattern Blocks; Flash Pattern Blocks for web and Mandalar for mobile devices (iOS/Android). ETA/Cuisenaire: Educational manipulatives & supplemental materials for grades PreK-12. Background on the Elementary Science Study; Educational and supplemental materials for K-12

6. List coloring - Wikipedia

   en.wikipedia.org/wiki/List_coloring

   For a graph G, let χ(G) denote the chromatic number and Δ(G) the maximum degree of G.The list coloring number ch(G) satisfies the following properties.. ch(G) ≥ χ(G).A k-list-colorable graph must in particular have a list coloring when every vertex is assigned the same list of k colors, which corresponds to a usual k-coloring.

7. How Was Night Stalker Richard Ramirez Caught? All About the ...

   www.aol.com/night-stalker-richard-ramirez-caught...

   In the 1980s, a serial killer who local media named the Night Stalker, terrorized cities across L.A. County. Police eventually identified this violent criminal as Richard Ramirez, a drifter from ...