REET Level 2 Mock Test - 4 (Science and Mathematics) - REET MCQ

To deal with a mixed-ability class a teacher should use a variety of teaching-learning methods.

• Make sure that there is a variation in the content i.e., using different types of content to develop contextual understanding.
• In addition to a common supply of learning materials and learning activities that contains the basic learning material, provide opportunities for students to obtain additional explanation and revision, or more in-depth analysis and extension. Make it clear to the students what the core of the material is and what involves extension or broadening. 
• Give examples from different settings. This way, students with different interests and prior knowledge feel included. Teachers can also ask students to present their own case studies or examples from their own experience or reference framework. 
• Provide sufficient variety in teaching methods and teaching strategies during your teaching-learning process.
• Teachers can create variety by asking questions, creating interaction, providing room for discussion, in addition to theory also paying attention to applications and exercises, telling a small anecdote, or giving examples. ​

Therefore, to make sure that the teacher is effectively dealing with heterogeneous and mixed classrooms, they should use a variety of teaching-learning methods.

Growth is the expansion of some object, institution or population which is measurable and is always quantitative whereas development is related to qualitative improvement. Qualitative differences focus on changes in the way children think, behave, and perceive the world differently as they mature.
Hence statement 4 is not true.

Conversation skill is not a tool but a skill that is learnt using various tools.

Problem-solving is an important part of thinking processes. In general, a problem is any kind of conflict or difference between one situation and another that one wishes to produce, that which is the goal. 

• Problem-solving can be done either with or without insight and utilizes analytical, synthetic thinking along with metacognition.
• An individual uses various kinds of methods or strategies to solve problems.
• Some strategies when used take a long time but definitely give an answer. On the other hand, there are some other strategies that take lesser time but do not always guarantee success.

Culture and training  are the external factors that are affecting the interest of students in a classroom.

As the term itself indicates, microteaching is scaled-down teaching in which the teacher teaches a short lesson to a small group of students for a short period. One teaching skill is practiced at a time. Thus microteaching is a miniature form of teaching in which teaching is scaled down in terms of class size, time, complexity, and activities with a focus on developing a specific teaching skill.
"Microteaching is a real teaching" this is an assumption in microteaching because it has nothing to do with students' learning. It totally focuses on teachers' teaching skills.

उपरोक्त दिए गए शब्द “मूल्यांकन” का संधि-विच्छेद होता है-मूल्य +आंकन। यहाँ “अ” और “आ” मिलकर “आ” हो जा रहा है। यह एक दीर्घ संधि का प्रकार है।

'इंसान' शब्द पुल्लिंग है अन्य सभी विकल्प स्त्रीलिंग है।
संज्ञा शब्दों के जिस रूप से उसके पुरुष या स्त्री जाति होने का पता चलता है, उसे लिंग कहते है। जैसे – गाय-बैल, लड़का-लड़की, ग्वाला-ग्वालिन।

आकलन अधिगम की प्रगति में सुधार के लिए डेटा एकत्र करने, प्राप्त करने और विश्लेषण करने की प्रक्रिया है।
तीन प्रकार के आकलन हैं: अधिगम के लिए आकलन (रचनात्मक आकलन), अधिगम का आकलन (योगात्मक आकलन) और अधिगम के रूप में आकलन (प्रामाणिकआकलन)।
प्रामाणिकआकलन (अधिगम के रूप में आकलन)- यह एक गतिविधि या कार्य का उपयोग है जो बच्चों को अपने स्वयं के अधिगम में सुधार के लिए आकलन का उपयोग करने में मदद करता है।
जब विद्यार्थी स्वयं अपने आकलन कर्ता बन जाते है तो इसे सीखने के रूप में आकलन कहा जाता है। 
यह बच्चों को अपने स्वयं के अधिगम पर प्रतिबिंबित करने और समायोजन करने में मदद करता है ताकि वे अवधारणाओं की गहन समझ प्राप्त कर सकें।
यह शिक्षार्थियों के निष्पादन के मापन का वह उपगम जो प्रत्यक्ष एवं सुसंगत तरीक से जाँच करता है कि अधिगम उद्देश्य प्राप्त हुए हैं या नहीं।
यह नैदानिक मूल्यांकन पर आधारित।
सीखने के रूप में आकलन एक रचनात्मक आकलन है जो विद्यार्थियों को अपने स्वयं के अधिगम का आकलन करने और समायोजन करने के लिए अधिसंज्ञानात्मक प्रक्रियाओं के शिक्षण पर केंद्रित है। 
अतः निष्कर्ष निकलता है कि शिक्षार्थियों के निष्पादन के मापन का वह उपगम जो प्रत्यक्ष एवं सुसंगत तरीक से जाँच करता है कि अधिगम उद्देश्य प्राप्त हुए हैं या नहीं। प्रमाणिक आकलन है।
अतः विकल्प (B) सही  है।

पुर्तगाली इतिहासकार डोमिंग पेस ने हम्पी को स्वप्नों की नगरी कहा था।
सन्दर्भ पंक्ति - लगभग पांच शताब्दी पूर्व पुर्तगाली इतिहासकार डोमिंग पेस ने हम्पी (विजयनगर) को स्वप्नों की नगरी कहा था। 

जब कोई बच्चा बिना अधिक अभ्यास के स्वाभाविक रूप से कोई भाषा सीखता है, तो उसे भाषा अर्जन कहते हैं। यह वह प्रक्रिया है जिसके द्वारा मनुष्य भाषा को समझने और समझने के साथ-साथ संवाद करने के लिए शब्दों और वाक्यों का निर्माण और उपयोग करने की क्षमता हासिल करता है। यह सर्वोत्कृष्ट मानवीय गुणों में से एक है, क्योंकि गैर-मनुष्य भाषा का उपयोग करके संवाद नहीं करते हैं।

रामायण काल के पुष्पक विमान, वर्षा, अग्नि, वायु आदि की शक्तियों को प्रकट करने वाले वाणों, समुन्द्र सोख कर जमीन निकालने वाले मंत्र से चलने वाले अद्भुत वाण-अस्त्र, महाभारतकालीन संजय की प्राप्त हुई दिव्य-दृष्टि आदि को साक्षात् और सत्य करने के लिए विज्ञान ने हमें बहुत कुछ उपलब्ध करा दिया है।

लिखना अर्थात लेखन कौशल चारों भाषा कौशलों में सबसे अंतिम चरण है। बच्चों में लेखन कौशल का विकास मौलिक विचारों को लिखित रूप देने तथा विभिन्न उद्देश्यों के लिए लिखने की क्षमता को संदर्भित करता है। लिखित भाषा का प्रयोग अपनी भाषा को अभिव्यक्त करने के लिए किया जाता है।

• दक्षता के साथ सहज अभिव्यक्ति के विकास को सुनिश्चित कर सकेंगे।
• वास्तविक अनुभव के साथ भाषाई कौशलों को सुगमता से ग्रहण करेंगें।
• तथ्यों को स्वयं के निजी अनुभवों से जोड़ कर अपने विचारों को अभिव्यक्त करेगें।
• स्वतंत्र एवं मौलिक अभिव्यक्ति के अवसर प्राप्त कर अपने विचारों को खुल कर रखेंगे।

अतः, निष्कर्ष निकलता है कि लिखित भाषा का प्रयोग अपनी अभिव्यक्ति के लिए किया जाता है।

शब्दों के अर्थ स्पष्ट करने की सर्वश्रेष्ठ पद्धति 'वाक्य-प्रयोग द्वारा बच्चों को अर्थ का अनुमान लगाने का अवसर देना' है। बच्चा किसी भी भाषा के शब्दों का अर्थ तब आत्मसात् करता है जब वह उन वस्तुओं अथवा शब्दों को स्वयं के जीवन से जोड़कर देखता है। शब्दों के अर्थ स्पष्ट करने की सर्वश्रेष्ठ पद्धति वाक्य-प्रयोग द्वारा बच्चों को अर्थ का अनुमान लगाने का अवसर देना है।

'अवगुंठन' शब्द का अर्थ घूँघट' है।
अव + गुंठन = 'अवगुंठन'
'अव' (हीन) उपसर्ग और 'गुंठन' (छिपाना) मूल शब्द
अर्थ: कपड़े से मुँह छिपाने या ढकने की क्रिया।

There are two syllables in the word "matches", they are "A and E".
A unit of pronunciation having one vowel sound, with or without surrounding consonants, forming the whole or a part of a word is known as syllable.

The Communicative Approach is an approach to language teaching that focuses on the development of communicative competence, which encompasses both fluency and accuracy in using the language in real-life contexts.

Silent reading is most helpful in understanding the depth of meaning. By reading silently, understanding the words in their mind, they read further. It also increases the speed of reading and increases the ability to understand.

Question tags are formed with the auxiliary or modal verb from the statement and the appropriate subject. A positive statement is followed by a negative question tag. A negative statement is followed by a positive question tag.

'Mechanics' of language in speaking skills includes pronunciation, grammar and vocabulary.
Mechanics refers to the way in which something is done or operated. Speaking skills is the ability to express opinions or thoughts and feelings to a person or group verbally, whether face or by distance. Alternatively, speech is a natural means of communication between members of the public to express their thoughts and as a form of social behavior. 
Language learners need to recognize that speaking involves three areas of knowledge: 
Mechanics (pronunciation, grammar, and vocabulary): Using the right words in the right order with the correct pronunciation.
From the above, it is clear that the 'Mechanics' of language in speaking skills includes pronunciation, grammar, and vocabulary. It is important because it enables the speaker to use the right words in the right order with the correct pronunciation.

Structure in second language is better assimilated in a pedagogical practice through meaningful interaction with interesting content which will also modify the grammar.

100% pure gold = 24 carat
50% pure gold = 12 carat = Rs 30,000
∴ 22 carat cost = 30,000 ÷ 12 × 22 = Rs 55,000
Detailed solution
GIVEN:
24 carat gold is hundred percent pure gold.
Price of 50% pure gold is Rs. 30,000
So, price of 1% pure gold = Rs. 600
CONCEPT:
In 22 carat gold pure gold is 22 parts out of 24 parts.
CALCULATION:

Percent of pure gold in 22 carat gold =(22/24)×100% = 91(2/3)%
Since, price of 1% pure gold = Rs. 600
∴ Price of pure gold in 22 carat Gold  = Rs.600 × 91(2/3)%
⇒ Price of pure gold in 22 carat Gold = Rs. 55,000

Mathematics is the study of numbers, shapes, quantities, and patterns. Mathematics is the ‘queen of all sciences’ and its presence is there in all the subjects. It acts as the basis and structure of other subjects. Mathematics is one of the few subjects that have functional, cultural, and disciplinary value. To make Mathematics an instrument of all the three values, it must be taught in an engaging, interesting, and interacting manner.

• Every organism adapts to the environment in which they survive. 
• Polar bears survive in very cold regions due to various adaptation done by it through the process of evolution. 

Polar Bears Adaptation to Climate:

• Polar bears have white fur so that they are not easily visible in the snowy white background.
• To protect them from extreme cold, they have two thick layers of white fur.
• They also have a layer of fat under their skin.
• On warm days, the polar bear goes for swimming. They are good swimmers. 
• Their paws are wide and large, which helps to swim when overheated.

• Apart from this the color of the fur is white, so they can easily hid in snow. 
• This give them protection from predators as well as help them to catch their prey for food. 

So, the correct option is 'All the above.'

• Hot air is lighter than cold air. 
• If there is a hot temperature in an area, the hot light air goes up. 
• This reduces air and hence reduced atmospheric pressure is created at that area. 
• Now, the empty space formed is occupied by the air coming from high-pressure areas. 
• The flow of air from a high-pressure area to a low-pressure area causes wind.
• The speed of the wind will be more if the pressure difference will be more. 

So, it is clear that the if atmospheric pressure increases, the wind speed will increase. 

For the metamorphosis of tadpoles, iodine should be present in water. This is because metamorphosis is brought about by thyroxine hormone that requires the presence of iodine for its production by thyroid gland.

The relative atomic masses of many elements are not whole numbers because there are different isotopes of the elements. The atomic weight is the average based on the proportions that they occur in naturally.

• The basic solution can turn red litmus to blue.
• Add a few drops of solution from each text tube on litmus paper.
• The distilled water is neutral in nature and thus on adding it to litmus paper there is no color change in litmus paper. 
• With the addition of a few drops of acidic solution on blue litmus paper, the litmus paper turns blue to red.
• With the addition of a few drops of basic solution on red litmus paper, the litmus paper turns red to blue.

Vitamin B2

• ​A deficiency of vitamin B2 can cause skin disorders, hyperaemia (excess blood) and swelling of the mouth and throat, angular stomatitis (sores on the corners of the mouth) and hair loss.
• One of the eight B vitamins that are crucial for human health is vitamin B2, sometimes known as riboflavin.
• Grain, vegetables, and dairy products all contain it. It is essential for digesting food, absorbing other nutrients, and keeping tissues healthy.
• Every vitamin is either fat-soluble or water-soluble. Water-soluble vitamins are transported by the bloodstream, and excess amounts leave the body through urine. 

In Science class, class discussions are important to learning in all disciplines because it helps students process information rather than simply receive it. In effective classroom discussions, we ask students to offer their ideas, waiting for students to think must trump the rush to finish. 
For an effective discussion in class VII on the topic, "Why smoke rises up?" a science teacher should:

• Focuses attention on student-centred learning where the teacher encourages the to indulge in self-learning techniques.
• Encourage students to ask questions and put their points of view.
• Provide a common platform to all the learners.
• Allow all the learners to participate in the discussion.
• Promote active learning by association and mutual co-operation of a group of peers to gain quality experiences.
• Acknowledge learners' responses to sustain their interest.
• Employs minimum effort and resources on teaching and motivates the learner to actively construct knowledge.
• Summarise and assess the learner's ideas at the end of the discussion.

Hence, from the above-mentioned points, it becomes clear that discouraging questions during the discussion is not the criterion for effective discussion in class.