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Rational Numbers: Dividing Fractions and Whole Numbers: 6 Videos

Video 1: Dividing a fraction by a whole number
Video 2: Divide fractions by whole numbers
Video 3: Meaning of the reciprocal
Video 4: Dividing a whole number by a fraction
Video 5: Dividing a whole number by fraction with a reciprocal
Video 6: Divide whole numbers by fractions

Onderwerp en thema
Form 1
Mathematics
Numbers I
Natural and whole numbers
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
No date
Schepper/Auteur
Khan Academy
Trefwoord
Rational numbers
Divide whole numbers
Fractions

pH Scale

Outcomes:

  • Determine if a liquid is acidic, basic, or neutral
  • Place acids or bases in relative order
  • Describe on a molecular scale, with illustrations, how the water equilibrium varies with pH
  • Determine concentration of hydroxide, hydronium and water at a given pH
  • Relate liquid color to pH
  • Predict (qualitatively and quantitatively) how dilution and volume will affect the pH and concentration of hydroxide, hydronium and water
Onderwerp en thema
Form 1
Biology
Introduction to biology
The biology laboratory
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Yuen-ying Carpenter (lead)
Trefwoord
pH
Dilution
Concentration
Acids
Bases

Scale of cells

Even though molecules, proteins, viruses, and cells are all tiny, there are significant size differences between them. The diameter of a water molecule is roughly 0.28 nanometers. The diameter of the protein hemoglobin is roughly 5 nanometers. The diameter of the HIV virus is roughly 120 nanometers. A red blood cell is 6-8 micrometers.

Onderwerp en thema
Form 1
Biology
Cell structure and organisation
Concept of cells
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2015
Schepper/Auteur
Sal Khan
Trefwoord
Cells

Skeletal structure and function

Skeletons support and protect our bodies. Bugs have exoskeletons outside their bodies, while humans have endoskeletons inside. Our bones are in axial (skull, ribcage, spine) and appendicular (arms, legs) groups. Bone marrow makes blood cells; more specifically, red marrow makes blood and yellow marrow stores fat. 

Onderwerp en thema
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2014
Schepper/Auteur
Tracy Kim Kovach
Trefwoord
Skeletal structure

Sura za Meiosisi - Phases of Meiosis

The phases of Meiosis.

Onderwerp en thema
Form 1
Biology
Introduction to biology
Scientific processes in biology
Type bron
Video
Taal
English
Uitgever
KhanAcademyKiswahili
Publicatiedatum
2012
Schepper/Auteur
KhanAcademyKiswahili
Trefwoord
Meiosis

Urination

Micturition (peeing) starts with urine flowing from the kidneys to the bladder via ureters. The bladder expands using transitional epithelium. Urine exits through the urethra, controlled by internal and external urethral sphincters. Ureters prevent backflow, thereby reducing infection risk

Onderwerp en thema
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2014
Schepper/Auteur
Raja Narayan
Trefwoord
Urination

Whole Number Addition

Write and solve vertical addition problems with whole numbers.

Onderwerp en thema
Form 1
Mathematics
Numbers I
Natural and whole numbers
Type bron
Cursus
Taal
English
Uitgever
CK-12
Publicatiedatum
2022
Schepper/Auteur
CK-12
Trefwoord
Whole numbers
Add whole numbers

Whole Number Division

Write and solve vertical division problems with whole numbers.

Onderwerp en thema
Form 1
Mathematics
Numbers I
Natural and whole numbers
Type bron
Cursus
Taal
English
Uitgever
CK-12
Publicatiedatum
2022
Schepper/Auteur
CK-12
Trefwoord
Whole numbers
Divide whole numbers

Whole Number Multiplication

Write and solve vertical multiplication problems with whole numbers. 

Onderwerp en thema
Form 1
Mathematics
Numbers I
Natural and whole numbers
Type bron
Cursus
Taal
English
Uitgever
CK-12
Publicatiedatum
2022
Schepper/Auteur
CK-12
Trefwoord
Whole numbers
Multiply whole numbers

Whole Number Subtraction

Write and solve vertical subtraction problems with whole numbers.

Onderwerp en thema
Form 1
Mathematics
Numbers I
Natural and whole numbers
Type bron
Cursus
Taal
English
Uitgever
CK-12
Publicatiedatum
2022
Schepper/Auteur
CK-12
Trefwoord
Whole numbers
Subtract whole numbers