Making broadcast television participative: Eliciting mathematical behavior throughSquare One TV

The current reform movement in mathematics education has called for new ways of teaching that encourage children to become active participants in mathematical problem solving. In this article, the potential of educational television to elicit such behavior is investigated by reviewing research on theSquare One TV television series. A sizable body of evidence indicates that, through viewer participation,Square One TV can promote mathematical behavior directly among its target audience of 8- to 12-year-olds. Described in the article are the types of viewer participation that have been observed, threeSquare One TV formats that have consistently been found to elicit participative behavior, and several characteristics of these formats that may have been responsible for increased viewer participation. If these characteristics are incorporated into future television-based materials, they may increase the potential of the materials to elicit active participation among viewers. The production ofSquare One TV and the research described here were supported by the National Science Foundation, the Corporation for Public Broadcasting, the Carnegie Corporation, and the U.S. Department of Education. Production of the first season was also supported by the Andrew W. Mellon Foundation and by the IBM Corporation. Additional funding for the fourth and fifth seasons was provided by the Intel Corporation. This article is based on a paper presented at the 1993 meeting of the American Educational Research Association in Atlanta, Georgia.     

Postsecondary Students with LD/ADHD Facing a Sudden Shift to Online Learning during the COVID-19 Pandemic—Emotional Costs and Implications

This study examined the emotional costs and well-being of postsecondary students with learning disabilities (LD) and attention deficit hyperactivity disorder (ADHD) who faced a sudden shift to emergency remote teaching (ERT) during the COVID-19 pandemic. The study was conducted with 237 postsecondary students in Israel from June to July 2020. With regard to online learning, the LD/ADHD subjects reported significantly higher levels of stress, anxiety, and depression and lower well-being than their neurotypical counterparts. However, no significant differences were found in emotional costs and well-being when the same students had experienced online learning prior to the pandemic. These findings have practical implications for policymakers in academia with regard to the emotional toll of online learning among students with LD/ADHD and their specific needs when facing ERT during the COVID-19 pandemic as well as the contribution of previous online learning when facing ERT.     

折出一间房子

纸这种柔软洁净的材料,通过人类的双手,在游戏一般的过程中能带来无限种可能的形式。小时候看着大人手中如同变魔术一般出现的纸船、纸飞机、纸衣服慢慢成为遥远而模糊的记忆。相比层出不穷用纸说事儿的那些纸雕塑、纸房子,真有种小巫见大巫的感觉。关键是,这种身怀柔术绝技的材料,还能循环利用,操作起来简便易行,更关键的是,各位满心点子的高手们以纸为师,用各种灵感、材     

第三代战斗机用大推力涡扇发动机巡礼（三）：昔日雄风今犹在——AЛ-31Ф系列发动机

上世纪70年代初,苏联针对美国普惠的F100高性能发动机,决定由留里卡设计局负责研制一款性能相近的战斗机发动机,项目代号99（Изделие 99）、正式的型号名称为AЛ-31Ф。1974年8月装配完成了第一台AЛ-31Ф,然而随后的台架试车结果却令人失望,性能并没有达标,发动机超重的情况也比较严重,达1600kg,推重比指标和F100相去甚远。超重的主因是发动机级数过多：     

How autonomy support and ethical value alignment influences attitudes towards diversity in English police

ABSTRACT

Antagonism towards diversity, an attitude reflecting low egalitarian ethical values, has been a topic within policing that has received increasing attention in the last decade. Using two-wave data and applying self-determination theory, we investigated how autonomy support versus autonomy frustration, ways of being motivated either through encouraging one’s sense of volition, or otherwise, coercing and imposing pressures, can improve diversity attitudes through its relation with ethical values. Study 1 (n= 398 police officers and staff) found that autonomy-supportive communications fostered ethical values, and hence was negatively related to diversity antagonism. Study 2 (n= 859 police officers and staff) indicated that motivation to overcome prejudice mediates the relationship between ethical values and diversity antagonism. Perceptions of workplace culture as lacking in autonomy support acted as a boundary condition for the ethical values and diversity antagonism relationship; no relationship was present when autonomy support was low.     

Values,intelligence and client behavior in career counseling: A field study

We examine relations of values and intelligence to overt behavior in a field study of clients in career counseling (N=365). Eleven counselors reported their clients' independence, activity and insightfulness behaviors. As predicted, both values and intelligence correlated substantially with particular behaviors. Activity and independence correlated positively with self-direction and achievement values and negatively with conformity and tradition values. Independence correlated positively with maturity values as well. Insightfulness correlated positively with maturity values and negatively with conformity and tradition values. All three behaviors correlated positively with intelligence. Values predicted behavior over and above intelligence, but intelligence added to the prediction by values only for the clients of some counselors. Implications of the findings for research on values and behavior are discussed.     

Value Profiles During Middle Childhood: Developmental Processes and Social Behavior

Little is known about how children's value priorities develop over time. This study identifies children's value priority profiles and follows their development during middle childhood. Australian children (N = 609; ages 5–12 at Time 1) reported their values over 2 years. Latent Transition Analysis indicated four profiles: Social-Focus, Self-Focus, Growth-Focus and Undifferentiated. Within person development was characterized by profile stability or transfer to the Social-Focus profile. Younger children were more likely to have an Undifferentiated profile (or Self-Focus among boys) than older ones. Girls were more likely to have a Social-Focus profile or transfer to it, and less likely to have a Self- or Growth-Focus profile than boys. Social-Focus profile membership over time predicted more prosocial and less aggressive behavior.     

Improving adult learning and professional development in a post-conflict area: The case of Cambodia

All over the world, international development organizations try to increase professional capacity of local staff. These attempts are thought to fail because of financial constraints, but this is just part of the story. Professional development and adult learning theories approach learning from a western perspective, while many developing societies are organized according to non-western models. This article describes research conducted in the Cambodian Ministry of Education, focusing on how adult learning theory could be applied in order to improve learning and support transfer. When local experience and the cultural influence on learning are acknowledged, learning outcomes are found to improve.