Lessons on Form: Or, An Introduction to Geometry, as Given in a Pestalozzian School, Cheam, SurreyTaylor and Walton, 1837 - 215 Seiten |
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Ergebnisse 1-5 von 31
Seite 4
... slate by the master , and the pupils are required to commit it to memory . Thus : — 1. All objects discernible by the senses are extend- ed in three dimensions : namely , in length , in breadth , and in depth or thickness . 2. Objects ...
... slate by the master , and the pupils are required to commit it to memory . Thus : — 1. All objects discernible by the senses are extend- ed in three dimensions : namely , in length , in breadth , and in depth or thickness . 2. Objects ...
Seite 5
... slates . M. - We will now first examine those solids which are bounded by plane faces only . See in what respect their faces differ . P. - In size , in shape , and in the number of straight lines which bound them . M. - Speaking of the ...
... slates . M. - We will now first examine those solids which are bounded by plane faces only . See in what respect their faces differ . P. - In size , in shape , and in the number of straight lines which bound them . M. - Speaking of the ...
Seite 6
... slates . Ex- amine the three - sided figure on your slates : in how many points do its three sides meet ? P. - In three points . M .- ( Draws a triangle upon the school - slate ) . a I will put the letters a , b , c at the three points ...
... slates . Ex- amine the three - sided figure on your slates : in how many points do its three sides meet ? P. - In three points . M .- ( Draws a triangle upon the school - slate ) . a I will put the letters a , b , c at the three points ...
Seite 7
... slates . P. - A four - sided figure has four angles ; a five - sided , five ; a six - sided , six ; a seven - sided , seven ; and an eight - sided has eight angles . M. - Can you imagine a figure having nine , ten , eleven , etc. sides ...
... slates . P. - A four - sided figure has four angles ; a five - sided , five ; a six - sided , six ; a seven - sided , seven ; and an eight - sided has eight angles . M. - Can you imagine a figure having nine , ten , eleven , etc. sides ...
Seite 8
... slates ; the substance of which is then arranged into sentences , and written by the master on the large school - slate , the pupils commit- ting them to memory . 1. Solids bounded by plane faces differ in shape and in the number of ...
... slates ; the substance of which is then arranged into sentences , and written by the master on the large school - slate , the pupils commit- ting them to memory . 1. Solids bounded by plane faces differ in shape and in the number of ...
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
a b and c d a c b a c d acute angles adjacent angle alternate angles angle a b c angle contained angles are equal angles equal base called centre chords circumference cut the circle demonstration diameter dodecahedron edges equal angles equal sides equilateral exterior angle greater inscribed interior and opposite isosceles triangle LESSON likewise lines a b lines be drawn M.-Compare M.-Demonstrate M.-Draw M.-Express M.-Hence M.-What M.-When obtuse angle octahedron opposite angles P.-Because P.-The angle parallelogram pentagon perpendicular plane angles plane faces point of contact pupils pyramid quadrilateral figure rectangle contained rhomb right angles semi-circumference similar triangles slates solid angles sphere square straight line joining tangent third side three angles trapezium triangle a b c triangles are equal truth twice the rectangle unequal whole line
Beliebte Passagen
Seite 98 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Seite 134 - In obtuse-angled triangles, if a perpendicular be drawn from either of the acute angles to the opposite side produced, the square on the side subtending the obtuse angle, is greater than the squares on the sides containing the obtuse angle, by twice the rectangle contained by the side...
Seite 137 - In every triangle, the square of the side subtending either of the acute angles is less than the squares of the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the perpendicular let fall upon it from the opposite angle, and the acute angle.
Seite 219 - A very convenient class-book for junior students in' private schools. It is intended to convey, in clear and precise terms, general notions of all the principal divisions of Physical Science.