Tasting to preserve: An educational activity to promote children's positive attitudes towards intraspecific diversity conservation.

On the edge of causing the sixth big mass extinction event, the development of positive attitudes towards the conservation of intraspecific diversity from early ages is essential to overcome the biodiversity crisis we currently face. However, there is no information available on elementary school students' attitudes toward intraspecific diversity conservation nor is there a framework available to perform such analysis. For this study we designed, implemented, and evaluated an educational activity planned for third graders (8 to 13 years old) to explore the intraspecific diversity of vegetables and promote healthy eating habits. Additionally, a framework was developed to evaluate students' attitudes towards intraspecific diversity conservation and applied to semi-structured interviews conducted with students before and after engaging in the educational activity. In this paper we present a reliable framework, developed aligned with the ABC model of attitudes, based on literature, and adapted to elementary school students' responses, to evaluate students' attitudes toward intraspecific diversity. Our results show that, before the educational activity, most students choose a non-biodiverse option, justifying this choice with the affective component of attitudes: mostly emotional factors but also aesthetic and social/cultural factors. After the educational activity, we observed a significant increase in the frequency of students that choose the biodiverse option and that justified it with the cognitive component of attitudes: mainly with biology and health knowledge factors, but also with economic and ethical knowledge factors. Our findings support the positive impact of educational activities that explore vegetable varieties on students' attitudes toward intraspecific diversity conservation. This activity may also be used to foster education for sustainability and address socioscientific issues aligned with diverse sustainable development goals.

Promoting scientific literacy in evolution through citizen science.

Evolutionary understanding is central to biology. It is also an essential prerequisite to understanding and making informed decisions about societal issues such as climate change. Yet, evolution is generally poorly understood by civil society and many misconceptions exist. Citizen science, which has been increasing in popularity as a means to gather new data and promote scientific literacy, is one strategy through which people could learn about evolution. However, despite the potential for citizen science to promote evolution learning opportunities, very few projects implement them. In this paper, we make the case for incorporating evolution education into citizen science, define key learning goals, and suggest opportunities for designing and evaluating projects in order to promote scientific literacy in evolution.

Following Darwin's footsteps: Evaluating the impact of an activity designed for elementary school students to link historically important evolution key concepts on their understanding of natural selection.

While several researchers have suggested that evolution should be explored from the initial years of schooling, little information is available on effective resources to enhance elementary school students' level of understanding of evolution by natural selection (LUENS). For the present study, we designed, implemented, and evaluated an educational activity planned for fourth graders (9 to 10 years old) to explore concepts and conceptual fields that were historically important for the discovery of natural selection. Observation field notes and students' productions were used to analyze how the students explored the proposed activity. Additionally, an evaluation framework consisting of a test, the evaluation criteria, and the scoring process was applied in two fourth-grade classes (N = 44) to estimate elementary school students' LUENS before and after engaging in the activity. Our results show that our activity allowed students to link the key concepts, resulting in a significant increase of their understanding of natural selection. They also reveal that additional activities and minor fine-tuning of the present activity are required to further support students' learning about the concept of differential reproduction.

Shooting skinks for good: Producing a movie improves attitudes towards a threatened species.

The interaction between the Anthroposphere and the Biosphere has resulted in increasingly rapid biodiversity loss. This negative interaction is influenced by attitudes (feelings, actions, and perceptions) of humans towards certain species. Despite the importance of reptiles in food chains and ecosystem services, they are often negatively perceived, resulting in fear and persecution. In this scenario, Education for Sustainable Development (ESD) may contribute for students to develop positive attitudes towards nature and, in particular, towards reptile conservation. Some studies showed that watching wildlife movies improves attitudes of people towards wildlife. However, few information is available on the impact of engaging people in movie production in their attitudes on biodiversity. Here we present an exploratory case study and describe a project-based learning activity (PBL) implemented with Cabo Verdean high-school students and planned to improve their perceptions, feelings and actions towards reptiles in general, and the threatened endemic species C. vaillanti in particular. We asked students to write a script, shoot and produce a short film that could improve the attitudes of their community towards this endemic species. This movie was then presented to the community in a public event and subjected to a content analysis. To evaluate the impact of the activity on students, they were asked to fill in two questionnaires, before and after the activity. Our results showed significant increase of positive feelings of students about the reptiles, and increased perception of their importance, and of positive actions towards C. vaillanti from pre to post test. The movie content analyses and interviews showed that students learned about species biology, threats and reasons for its conservation, of which endemicity was the most frequently cited. Our findings support the value of engaging the public in PBL for EDS and the positive impacts of this engagement in public attitudes towards species conservation.

The taste of biodiversity: science and sensory education with different varieties of a vegetable to promote acceptance among primary school children.

OBJECTIVE: To determine the impact of an educational programme for primary schools that explored the biodiversity of tomato, by promoting science and sensory education with three distinct varieties of it, in the acceptance of vegetables. DESIGN: A randomised controlled study in which children were exposed to the educational programme (intervention group) or remained in the class, as usual (control group). The educational programme consisted of three sessions where children explained the observed differences between the three varieties of tomato and individual perceptions of their flavours based on sensory-based food education and by planning and implementing experiments to explain those differences. We tested the effects on both children's willingness to try and their liking for tomato, and for lettuce and cabbage to study the carry-over effect, compared with the control group (Mann-Whitney U test; P < 0·05). SETTING: The study took place in public primary schools in Porto, Portugal. PARTICIPANTS: Children in the third grade (8-13-year-old children) (n 136) were randomly assigned to intervention or control group. RESULTS: Children in the intervention group reported significant increases in their willingness to try and liking for tomato compared to the control group (P < 0·05), but not for lettuce and cabbage (P > 0·05). CONCLUSIONS: These results highlight the potential for fostering children's acceptance of a vegetable by exploring biodiversity through science education. Further work may clarify the effects of exploring biodiversity on the consumption of vegetables and establish whether the results are stable over time and replicable across contexts and populations.

Development and validation of a framework for the assessment of school curricula on the presence of evolutionary concepts (FACE).

Evolution is a key concept of biology, fundamental to understand the world and address important societal problems, but research studies show that it is still not widely understood and accepted. Several factors are known to influence evolution acceptance and understanding, but little information is available regarding the impacts of the curriculum on these aspects. Very few curricula have been examined to assess the coverage of biological evolution. The available studies do not allow comparative analyses, due to the different methodologies employed by the authors. However, such an analysis would be useful for research purposes and for the development of appropriate educational policies to address the problem of a lack of evolution acceptance in some countries. In this paper we describe the steps through which we developed a valid and reliable instrument for curricula analysis known as FACE: "Framework to Assess the Coverage of biological Evolution by school curricula." This framework was developed based on the "Understanding Evolution Conceptual Framework" (UECF). After an initial pilot study, our framework was reformulated based on identified issues and experts' opinions. To generate validity and reliability evidence in support of the framework, it was applied to four European countries' curricula. For each country, a team of a minimum of two national and two foreign coders worked independently to assess the curriculum using this framework for content analysis. Reliability evidence was estimated using Krippendorf's alpha and resulted in appropriate values for coding the examined curricula. Some issues that coders faced during the analysis were discussed and, to ensure better reliability for future researchers, additional guidelines and one extra category were included in the framework. The final version of the framework includes six categories and 34 subcategories. FACE is a useful tool for the analysis and the comparison of curricula and school textbooks regarding the coverage of evolution, and such results can guide curricula development.

Using SimulATe to model the effects of antibiotic selective pressure on the dynamics of pathogenic bacterial populations.

Antibiotics are notable weapons in fighting bacteria. Nowadays, however, the effectiveness of antibiotics is severely hindered by the increasing levels of antibiotic resistances in pathogenic bacterial populations, which can persist due to the selective pressure caused by antibiotic exposure. Arguably, the main cause of antibiotic resistances endurance in nature is antibiotic misuse, such as via overusing, inappropriate prescribing as well as the uncontrolled use in agriculture and livestock. There is also a lack of knowledge on appropriate antibiotic usage by the general public. Public scientific literacy and more research on therapeutic practices are fundamental to tackle this problem. Here, we present SimulATe a software which allows the simulation of the effects of antibiotic therapies on bacterial populations during human infections. This software can be used to develop students' scientific literacy, using infections and antibiotic treatments as context to engage students in scientific practices, and discussions on antibiotic treatment onset and duration or on its use in immunosuppressed or critically ill individuals. SimulATe's features also allow it to be used for research purposes allowing the simulation of real scenarios and exploration of their outcomes across the parameters' landscape.