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2. Positional notation - Wikipedia

   en.wikipedia.org/wiki/Positional_notation

   In some African languages the word for five is the same as "hand" or "fist" (Dyola language of Guinea-Bissau, Banda language of Central Africa). Counting continues by adding 1, 2, 3, or 4 to combinations of 5, until the secondary base is reached. In the case of twenty, this word often means "man complete". This system is referred to as ...

3. Mathematics - Wikipedia

   en.wikipedia.org/wiki/Mathematics

   The Babylonians also possessed a place-value system and used a sexagesimal numeral system which is still in use today for measuring angles and time. [76] In the 6th century BC, Greek mathematics began to emerge as a distinct discipline and some Ancient Greeks such as the Pythagoreans appeared to have considered it a subject in its own right. [77]

4. Kumon - Wikipedia

   en.wikipedia.org/wiki/Kumon

   All Kumon programs are pencil-and-worksheet-based, with a digital program that started in 2023. The worksheets increase in difficulty in small increments. [9] [10] Psychologist Kathy Hirsh-Pasek says that using such techniques for 2 to 12-year-olds "does not give your child a leg up on anything". [7] One study has observed a high percentage of ...

5. Mathematics education in the United States - Wikipedia

   en.wikipedia.org/wiki/Mathematics_education_in...

   Mathematics education in the United States varies considerably from one state to the next, and even within a single state. However, with the adoption of the Common Core Standards in most states and the District of Columbia beginning in 2010, mathematics content across the country has moved into closer agreement for each grade level.

6. 6 Healthy Reasons to Finally Try Dry January In 2025 - AOL

   www.aol.com/benefits-dry-january-may-convince...

   Dry January is a challenge started in 2013 to eliminate alcohol from your diet. This is what you need to know about the health benefits.

7. Wide Range Achievement Test - Wikipedia

   en.wikipedia.org/wiki/Wide_Range_Achievement_Test

   The Wide Range Achievement Test, currently in its fifth edition (WRAT5), is an achievement test which measures an individual's ability to read words, comprehend sentences, spell, and compute solutions to math problems. [1] The test is appropriate for individuals aged 5 years through adult. The WRAT5 provides two equivalent forms (Blue and Green ...