In mathematics education at primary school level, a number bond (sometimes alternatively called an addition fact) is a simple addition sum which has become so familiar that a child can recognise it and complete it almost instantly, with recall as automatic as that of an entry from a multiplication table in multiplication. For example, a number bond looks like A child who "knows" this number bond should be able to immediately fill in any one of these three numbers if it were missing, given the other two, without having to "work it out". Number bonds are often learned in sets for which the sum is a common round number such as 10 or 20. Having acquired some familiar number bonds, children should also soon learn how to use them to develop strategies to complete more complicated sums, for example by navigating from a new sum to an adjacent number bond they know, i.e. 5 + 2 and 4 + 3 are both number bonds that make 7; or by strategies like "making ten", for example recognising that 7 + 6 = (7 + 3) + 3 = 13. The term "number bond" is also used to refer to a pictorial representation of part-part-whole relationships, often found in the Singapore mathematics curriculum. Number bonds consist of a minimum of 3 circles that are connected by lines. The “whole” is written in the first circle and its “parts” are written in the adjoining circles.Number bonds are used to build deeper understanding of math facts. (Wikipedia).
EngageNY Grade 2 Module 1 Lesson 1
EngageNY Grade 2 Module 1 Lesson 1
From playlist EngageNY Grade 2 Module 1
Exploring an amazing pattern that forms when we multiply numbers built only with the one digit
From playlist Number Patterns
Number theory Full Course [A to Z]
Number theory (or arithmetic or higher arithmetic in older usage) is a branch of pure #mathematics devoted primarily to the study of the integers and integer-valued functions. Number theorists study prime numbers as well as the properties of objects made out of integers (for example, ratio
From playlist Number Theory
The Prime Number Theorem, an introduction ← Number Theory
An introduction to the meaning and history of the prime number theorem - a fundamental result from analytic number theory. Narrated by Cissy Jones Artwork by Kim Parkhurst, Katrina de Dios and Olga Reukova Written & Produced by Michael Harrison & Kimberly Hatch Harrison ♦♦♦♦♦♦♦♦♦♦ Ways t
From playlist Number Theory
Only four numbers exhibit this unique factorial pattern
From playlist Number Patterns
Using number bonds to represent fraction shaded and unshaded.
From playlist Fraction Concepts
Different Types of Numbers on the number line, lesson 1 #shorts
Watch the full playlist: https://www.youtube.com/watch?v=kcxK3_sROZA&list=PL14bv5vXK2WWuODhGbpPQA0GamV5ohOVb&index=1 Natural Numbers (N), (also called positive integers, counting numbers, or natural numbers); They are the numbers {1, 2, 3, 4, 5, …} Whole Numbers (W). This is the set of na
From playlist Celebrities Teach Math: The Number System
Chem 201. Organic Reaction Mechanisms I. Lecture 03. Molecular Orbital Theory (Pt. 3) & Energy Pt. 2
UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 03. Organic Reaction Mechanism -- Molecular Orbital Theory (Part 3) & Energy -- Part 2 View the complete course: http://ocw.uci.edu/courses/chem_201_organic_reactions_mechanisms_i.html Instructor: David Van Vranken, Ph.D. License:
From playlist Chem 201: Organic Reaction Mechanisms I
Lec 12 | MIT 5.111 Principles of Chemical Science, Fall 2005
Lewis Diagrams (Prof. Sylvia Ceyer) View the complete course: http://ocw.mit.edu/5-111F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2005
Signal characteristics - wavenumber | Spectroscopy | Organic chemistry | Khan Academy
Using equations to predict the wavenumber for different types of chemical bonds. Created by Jay. Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/spectroscopy-jay/infrared-spectroscopy-theory/v/ir-spectra-for-hydrocarbons?utm_source=YT&utm_medium=Desc&utm_campa
From playlist Spectroscopy | Organic Chemistry | Khan Academy
Worked examples: Finding the hybridization of atoms in organic molecules | Khan Academy
We can find the hybridization of an atom in a molecule by either looking at the types of bonds surrounding the atom or by calculating its steric number. In this video, we use both of these methods to determine the hybridizations of atoms in various organic molecules. View more lessons or p
From playlist Structure and bonding | Organic Chemistry | Khan Academy
General Chemistry 1A. Lecture 12. Two Theories of Bonding.
UCI Chem 1A General Chemistry (Winter 2013) Lec 12. General Chemistry -- Two Theories of Bonding View the complete course: http://ocw.uci.edu/courses/chem_1a_general_chemistry.html Instructor: Amanda Brindley, Ph.D. License: Creative Commons BY-NC-SA Terms of Use: http://ocw.uci.edu/info.
From playlist Chem 1A: General Chemistry
Organic Chemistry Exam 1 Review
This organic chemistry exam 1 review video discusses topics that are typically covered on the 1st exam in a college level organic chemistry course. Topics include IUPAC nomenclature, identifying functional groups, drawing Lewis structures, bond angles, hybridization, formal charge, resona
From playlist New Organic Chemistry Playlist
General Chemistry 1A. Lecture 13. Hybridization Examples and MO Diagram Introduction.
UCI Chem 1A General Chemistry (Winter 2013) Lec 13. General Chemistry Intermolecular Forces -- Hybridization Examples and MO Diagram Introduction -- View the complete course: http://ocw.uci.edu/courses/chem_1a_general_chemistry.html Instructor: Amanda Brindley License: Creative Commons BY
From playlist Chem 1A: General Chemistry
Organic Chemistry Exam 1 - IUPAC Nomenclature, Resonance, Acids & Bases, Newman Projections
This video cover topics commonly tested on exam 1 of the 1st semester of Organic Chemistry. Topics include Resonance Structures, Formal Charge, Drawing Lewis Structures, IUPAC nomenclature, acids and bases, chair conformations, constitutional isomers, and newman projections. Access The F
From playlist New Organic Chemistry Playlist
Steric Number, Hybridization, & Orbital Overlap - Organic Chemistry
This organic chemistry video explains how to calculate the steric number using the lewis structure. It also explains how to determine hybridization and orbital overlap using the steric number. Organic Chemistry Exam 1 Playlist: https://bit.ly/3kJnNXU Access The Full 7 Hour Organic Chemi
From playlist New Organic Chemistry Playlist
Ex: Linear Equation Application with One Variable - Number Problem
This video provides and example of how to solve a number problem using a linear equation with one variable. One number is a multiple of the other. The difference is a constant. Find the two numbers. Library: http://mathispower4u.com Search: http://mathispower4u.wordpress.com
From playlist Whole Number Applications
Lec 13 | MIT 5.111 Principles of Chemical Science, Fall 2005
Breakdown of Octet Rule (Prof. Sylvia Ceyer) View the complete course: http://ocw.mit.edu/5-111F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2005