Обучение по природни науки и върхови технологии

ПРИНЦИПИТЕ НА КАРИЕРНОТО РАЗВИТИЕ НА МЛАДИЯ УЧЕН

В настоящата статия се коментират резултатите от три анкети, проведени сред участниците във Втората обучителната школа в рамките на Оперативна програма „Наука и образование за интелигентен растеж“. Целта на включените въпроси е да се направи обективна оценка...

МЕТОДОЛОГИЧЕН ПОДХОД ЗА ОТКРИВАНЕ НА ТАЛАНТЛИВИ УЧЕНИЦИ ПО ПРИРОДНИ НАУКИ ЧРЕЗ ФЕНОМЕНИТЕ НА ЖАН ПИАЖЕ И ТЕСТА ЗА ИНТЕЛИГЕНТНОСТ НА БИНЕ-ТЕРМАН

В статията се представя методологичен подход, базиран на корелационен модел на базата на феномените на Пиаже и теста за интелигентност на Бине-Терман. Посоченият подход дава възможност да се определи умствената възраст чрез провеждането на експериментите на...

TEACHING ACTIVITIES AND ACTIVITY COEFFICIENTS: AN ALTERNATIVE APPROACH

The article outlines an approach to teaching the concept of activity and activity coefficient starting with the relationship between Gibbs free energy change and pressures of ideal gases for the process of their mixing. The gases are then assumed to be the va...

УЧЕНИЧЕСКИ ПОГРЕШНИ СХВАЩАНИЯ, СВЪРЗАНИ С ХИМИЧНОТО РАВНОВЕСИЕ

Химичното равновесие е една от най-сложните и важни теми в училищния курс по химия. Определянето на същността, намирането и разкриването на ученическите погрешни схващания (алтернативни концепции), свързани с него, е от значение както за теорията на науката...

USING MORE REAL LIFE EXAMPLES TO ENHANCE LEARNING IN A GENERAL CHEMISTRY LECTURE

Below are a few more “real life” examples that have been continually used successfully over the years to help students remember and understand some of the concepts taught in general chemistry. These examples try to reinforce the chemical ideas as well as provi...

UTILISATION OF THE STATIC EVANS METHOD TO MEASURE MAGNETIC SUSCEPTIBILITIES OF TRANSITION METAL ACETYLACETONATE COMPLEXES AS PART OF AN UNDERGRADUATE INORGANIC LABORATORY CLASS

The Evans method is routinely utilised to collect paramagnetic susceptibility data via the employment of relevant Nuclear Magnetic Resonance (NMR) methods. As the sample is normally spun, the lack of such a function on benchtop NMR instrumentation required a...

STUDY OF MOROCCAN PUPILS’ SKILLS IN SOLVING CHEMISTRY PROBLEMS AT FIRST YEAR OF HIGH-SCHOOL

This study purpose to analyze the macro-skills (assimilate, analyze, and achieve) that Moroccan pupils (16 – 17 years) of high-school (first-year classes) master to solve chemistry problems involving chemical concepts such as equation of reaction, complete...

ESTIMATION OF GENOTOXIC EFFECT OF INSECTICIDE CHROMAGOR AT GOLDFISH (CARASSIUS AURATUS) AFTER 5 DAYS OF TREATMENT

The genotoxic effects of insecticide chromagor(dimethoate) were evaluated in goldfish Carassius auratus using the micronucleus test. The aim of this study is to estimate the damage of DNA, after treatment of goldfish Carassius auratus for five days with ins...

BIOACCUMULATION OF CADMIUM IN EDIBLE WILD MUSHROOM (SUILLUS LUTEUS), BULGARIA

The studywas conducted on Cambisols soilsand wild edible mushroom (Suillus Luteus) from the Batak Mountain, Bulgaria. The total cadmium content in the soils was measured after their decomposition with HCl and \(\mathrm{HNO}_{3}\) acids. The mushroom samples...

THE 100th ANNIVERSARY OF IUPAC AS AN INTERNATIONAL HUMAN RIGHTS ORGANIZATION FOR CHEMISTS IN 2019: STATUTE, STRUCTURE AND COMPETENCE

IUPAC 100th anniversary will be celebrated in 2019 year all over the world by the chemistry community predominantly, like a globally-recognized authority on chemical nomenclature and terminology. In the view of the fact that this honoring is commemorated only...

A TALE OF SEVEN SCIENTISTS