The Dalton Plan of EducationThe Dalton Laboratory Plan. Evelyn Dewey
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چکیده
منابع مشابه
A Modified Dalton Plan in a Special School
. r t , t There were four class-rooms, with a teacher in c large o eaci, wo or number and two for reading. . , . ^ ,. The children, who were divided into two groups in each subject, according to their reading and number age, were told which rooms t e\ mig l go o, an allowed to choose their own period for work in each. The rule was aid own that work in both subjects must be done each morning. In...
متن کاملDalton Transactions www . rsc . org / dalton
The synthesis of ligand LTH8, based on a thiophene framework containing two bis(aminomethyldiphosphonate) functions in ortho position to the central sulfur atom, is described, together with the characterization of the intermediate compounds. The physico-chemical properties of the ligand were first studied by means of potentiometry and UV-Vis absorption spectrophotometric titrations to determine...
متن کاملDalton Transactions www . rsc . org / dalton
Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal’s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains. ...
متن کاملDalton Transactions www . rsc . org / dalton
Three new complexes of formulation fac-[Re(CO)3(diim)L], where diim is either 1,10phenanthroline or 1,10-phenanthroline functionalised at position 5 by a thioalkyl chain, and L is either a chloro or aryltetrazolato ancillary ligand, were synthesised and photophysically characterised. The complexes exhibit phosphorescent emission with maxima around 600 nm, originating from triplet metal-to-ligan...
متن کاملDalton Transactions www . rsc . org / dalton
Reaction of analgin (NaL) with Co(II), Ni(II) and Cu(II) salts in ethanol affords complexes of the type [ML2], which were characterized by elemental analysis, FT IR, UV-Vis., EPR, TG/DTA, magnetic susceptibility and conductance measurements. The copper(II) complex crystallizes in the orthorhombic Pbca space group. Analgin behaves as a mono-negatively tridentate ligand via pyrazolone O, sulfonat...
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ژورنال
عنوان ژورنال: The School Review
سال: 1922
ISSN: 0036-6773
DOI: 10.1086/437589